Question

Three classmates are working with three different expressions. Each classmate substitutes in the value x=4
into their expression.

Kaleigh Hank Sonny
5x+7 5x2+7 5x+7

Answer 1

Let's substitute \( x = 4 \) into each of the expressions for Kaleigh, Hank, and Sonny.

1. **Kaleigh's expression: \( 5x + 7 \)**
\[
5(4) + 7 = 20 + 7 = 27
\]

2. **Hank's expression: \( 5x^2 + 7 \)**
\[
5(4^2) + 7 = 5(16) + 7 = 80 + 7 = 87
\]

3. **Sonny's expression: \( 5x + 7 \)**
(Note: Sonny has the same expression as Kaleigh)
\[
5(4) + 7 = 20 + 7 = 27
\]

Now, summarizing the results:
- Kaleigh: \( 27 \)
- Hank: \( 87 \)
- Sonny: \( 27 \)

So, Kaleigh and Sonny both get 27, while Hank gets 87.