Which expression represents “add 7 and a number n, then multiply 8 cubed! ? ”

A. Would be your answer

Step-by-step explanation:

7 plus a number n is 7+n, so B and D are already incorrect.

The phrase “and then multiply” suggests parenthesis be around the numbers/variables you would need to do first, so that excludes C.

Making A. your only answer left

Hope I helped!

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

just get this app called photo math it should be able to do those