To solve for radius use the volume formula and solve for r.
V = πr²h
320π = πr²(20)
320π/π = 20r²
320 = 20r²
320/20 = r²
16 = r²
√16 = r
4 = r
Answer is D. 4 feet.
Hope this helps :)
Answer:
b = c - a - D
Step-by-step explanation:

Answer:
-2
Step-by-step explanation:
7x-21-10x+20=5
7x-10x-1=5
-3x=5+1
x=-6/3
x=-2
20% = 0.20
1254 x 0.20 = 250.80
so he has $250.80 deducted every month
Answer:
50.27 square inches (in²)
Step-by-step explanation:
Area = π·r2 = 3.14·42 = 50.27 square inches(*)
d = 8
C = 25.1
A = πr2 = π(d
A = _C²_
4π
π = 3.1415
A = area
C = circumference or perimeter
r = radius, d = diameter