diff --git a/lesson_07/conditionals/.env.test b/lesson_07/conditionals/.env.test
index de8c44249..f811b9059 100644
--- a/lesson_07/conditionals/.env.test
+++ b/lesson_07/conditionals/.env.test
@@ -1 +1 @@
-HW_VERSION=your homework version here
\ No newline at end of file
+HW_VERSION=D
\ No newline at end of file
diff --git a/lesson_07/conditionals/src/lesson7.ts b/lesson_07/conditionals/src/lesson7.ts
index cc44be44c..12948d106 100644
--- a/lesson_07/conditionals/src/lesson7.ts
+++ b/lesson_07/conditionals/src/lesson7.ts
@@ -11,10 +11,13 @@ export function compareStrings(a: string, b: string): number {
   // The distance will be a number less than 0 if string `a` is lexicographically less than `b`, 1
   // if it is greater, and 0 if the strings are equal.
   const distance = computeLexicographicDistance(a, b);
-
-  // TODO(you): Finish this method.
-
-  return 0;
+  if (distance < 0) {
+    return -1;
+  } else if (distance > 0) {
+    return 1;
+  } else {
+    return 0;
+  }
 }
 
 /**
@@ -24,7 +27,22 @@ export function compareStrings(a: string, b: string): number {
  * @return The factorial of n.
  */
 export function computeFactorial(n: number): number {
-  return 0;
+  // worked with Davis to complete this coding problem
+  // edge cases
+  if (n === 0) {
+    return 1;
+  }
+  if (n === 1) {
+    return 1;
+  }
+  if (n < 0) {
+    return 0;
+  }
+  let result = 1;
+  for (let i = 2; i <= n; i++) {
+    result *= i;
+  }
+  return result;
 }
 
 /**
@@ -34,7 +52,20 @@ export function computeFactorial(n: number): number {
  * @return An array containing the first `n` Fibonacci values.
  */
 export function getFirstNFibonacciNumbers(n: number): number[] {
-  return [];
+  // edge cases
+  if (n === 0) {
+    return [];
+  }
+  if (n === 1) {
+    return [1];
+  }
+  // create array
+  const number: number[] = [1, 1];
+  for (let i = 2; i < n; i++) {
+    //iterate thorugh items in array
+    number.push(number[i - 1] + number[i - 2]);
+  }
+  return number;
 }
 
 /**
@@ -65,5 +96,11 @@ export function binarySearch(
   // Else if values[pivotIndex] is greater than the value, then
   // call `binarySearch(values, start, pivotIndex - 1, value)` and return its value;
   // Else call `binarySearch(values, pivotIndex + 1, end, value)` and return its value.
-  return -1;
+  if (values[pivotIndex] === value) {
+    return pivotIndex;
+  } else if (values[pivotIndex] > value) {
+    return binarySearch(values, start, pivotIndex - 1, value);
+  } else {
+    return binarySearch(values, pivotIndex + 1, end, value);
+  }
 }
diff --git a/lesson_07/conditionals/src/part_d.ts b/lesson_07/conditionals/src/part_d.ts
index c30cbac2f..df0cb88ed 100644
--- a/lesson_07/conditionals/src/part_d.ts
+++ b/lesson_07/conditionals/src/part_d.ts
@@ -7,7 +7,11 @@
  * @returns
  */
 export function isWithinRange(num: number, min: number, max: number): boolean {
-  return false;
+  if (num >= min && num <= max) {
+    return true;
+  } else {
+    return false;
+  }
 }
 
 /**
@@ -19,7 +23,14 @@ export function isWithinRange(num: number, min: number, max: number): boolean {
  * @returns
  */
 export function isValidTriangle(a: number, b: number, c: number): boolean {
-  return false;
+  /* a + b > c
+  a + c > b
+  b + c > a*/
+  if (a + b > c && a + c > b && b + c > a) {
+    return true;
+  } else {
+    return false;
+  }
 }
 
 /**
@@ -30,5 +41,18 @@ export function isValidTriangle(a: number, b: number, c: number): boolean {
  * @returns
  */
 export function getSeason(month: number): string {
-  return "Invalid month";
+  if (month === 1 || month === 2 || month === 12) {
+    return "Winter";
+  }
+  if (month === 3 || month === 4 || month === 5) {
+    return "Spring";
+  }
+  if (month === 6 || month === 7 || month === 8) {
+    return "Summer";
+  }
+  if (month === 9 || month === 10 || month === 11) {
+    return "Fall";
+  } else {
+    return "Invalid month";
+  }
 }