Answer:
4pi r
Step-by-step explanation:
12/-30=8x
cross multiply
12x=-240
x=-20
It would be 8 to the 8th power
Answer:
A for first one and C
Step-by-step explanation:
Answer:
$100
Step-by-step explanation:
the equation to solve this is:


(Assuming, of course, that this is a homework assignment and not you actually buying it cuz' in real life the numbers would be different from month to month)