diff --git a/education/software development/ECE1400/Chapter 9 Exercises.md b/education/software development/ECE1400/Chapter 9 Exercises.md
index 74bec6e..cb7e302 100644
--- a/education/software development/ECE1400/Chapter 9 Exercises.md	
+++ b/education/software development/ECE1400/Chapter 9 Exercises.md	
@@ -38,3 +38,12 @@ int check(int x, int y, int n) {
 > 7. Suppose that function `f` has the following definition:
 > `int f(int a, int b) { ... }`
 > Which of the following statements are legal? Assume that `i` has type `int` and `x` has type `double`).
+
+Answer:
+All of them are legal and will compile and run. (c) and (d) are what I would consider bad practice because they perform an implicit conversion from a double to an int, and should include an explicit cast.
+
+> 8. Which of the following would be valid prototypes for a function that returns nothing and has one double parameter?
+
+Answer:
+(a) and (b).
+Parameters must contain a type annotation but theyd o 
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