Answer & Step-by-step explanation:
The formula is given in the middle. You are supposed to insert the value of x into this formula to find the value of y (like in the first given example):

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:Done
Anything that is inside the perenthasis are just like a regular math problem, so your answer should be:
C. 5
Answer:
A
Step-by-step explanation:
He is incorrect because he multiplied the bases.
Answer:
l:4
w: 3
l:4
w:1
Step-by-step explanation:
Hope this helps