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

Question

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.