Answer:
In terms of pi: 243
in decimal form: 763.407
Step-by-step explanation:
to find surface area of a hemisphere the formula is,

diameter (d) = 18
radius = d / 2 = 18 / 2
radius = 9

I think the answer to that is A
Remove the radical by raising each side to the index of the radical.
x = 5/2
6x + 15
anything 2 ask please pm me