(3^3)(32)+12/4=867
hope dis helps
The formula for surface area is SA=4pi(radius)^2
This means that 4SA=4pi(2r)^2
because 2^2=4
so multiply the first ball's surface area by 4
the answer is c
Answer:

Step-by-step explanation:
Slope Formula: 
Simply plug in 2 coordinates into the slope formula to find slope <em>m</em>:




Answer:
r=5
Step-by-step explanation:
r+2=7
r=5
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