I really need some help it's hard to understand

C

Step-by-step explanation:

Formula: A=2πrh + 2πr^2

Plug in r=2 km and h=11 km.

A=2xπx2x11 + 2π2^2

A=52π

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

answer: it's upside down and i can't read it

step-by-step explanation: