Answer:
(x,y)=(6,6)
Step-by-step explanation:
there you go
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.
The estimated total amount of the bill is $22. The total on the register is reasonable.
We have an equation: 42/? = 75/100
Cross multiply:
75*? = 42*100
⇒ ? = 42*100/75= 56
The original price of the sweater was $56.
Hope this helps~
Answer: 
Step-by-step explanation:
The common ratio is 15/3 = 5.
The first term is 3.
So, the explicit rule is
