Answer:
A
Step-by-step explanation:
Answer:

multiply either sides by 3:

divide either sides by πr² :

You would use the POINT SLOPE FORMULA and the Slope Formula
which is as follows ...
slope formula : 
point slope formula: 
Answer:
4.56
×
10^
−
3
Step-by-step explanation:
Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10
. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.