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

Answer:
5.6 x 10 2
Step-by-step explanation:
8x+6=62
8x=62-6
8x=56
X=56/8
X=7
The answer is 7. Hope this helps!
Answer:
3a^2b-5ab^2
Step-by-step explanation: