Altho' I can easily guess what you're supposed to do here, I must point out that you haven't included the instructions for this problem.
I'll help you by example. Let's look at the first problem:
"Evaluate 6(z-1) at z-4."
Due to "order of operations" rules, we must do the work inside the parentheses FIRST. Replace the z inside (z-1) with "-4". We obtain
6(-4-1) = 6(-5) = -30 (answer.)
Your turn. Try the next one. If it's unclear, as questions.
Area = l x w
Area =9 x 4.25
A = 48.25
A≈ 48 in²
-2 (-30) - 3y = 42
60 - 3y = 42
-3y = -18
y = 6
Answer:
what is your problem im a kid