10%
You can do this in your head easily, but here is an equation.
x is the starting number, v is the number that changed and p is the percent.
x / v = p
The formula for the volume of a quarter-sphere is simply one-fourth of the volume of the sphere. So the volume of a quarter-sphere:
V = (1/4) (4/3) (π r³)
or
V = (1/3) (π r³)
Since we are given with the radius of 70 feet, the volume is
V = (1/3) (π) (70³)
V = 359,189 cubic feet
Amanda can buy 20 nectarines with $16
Hopefully this helps if not use Photomath
