Question

Pls helpppp meeeeee :(

Answer 1

Answer:

Sam

30

Step-by-step explanation:

Sam made a mistake when he said $10^2 -20$. The steps should have been:

$2n^2-20=2(5)^2-20\\2(25)-20\\50-20=30$

You are supposed to square 5 first before multiplying 2. Sam multiplied by 2 first. The correct answer is 30.