Try Using the Formula I=Prt
principal×rate×time
so
P-1200
R-.039
T-8 months
Let's dividey y by x, so y in this case would be 37.5 and x would be 125 minutes.
37.5/125= .3
So the rate is .3, let's now find the charge at 175 minutes.
175×.3=52.5
So it should've cost $52.50 this month.
Cone: 201.92=π×r^2×h×1/3
Cylinder: V=π×r^2×h
So you can see that there is No difference between the two equations except from the Factor 1/3. Without This Factor the volume of the cone would be three Times as big. Therefore, to calculate the Volume of the cylinder, you have do This:
201.92×3
