The formula for the volume of a sphere is V=(4/3) (pi) r^3. if r is doubled then you get 2r as the radius and V=(4/3) (pi) * 8r^3 so the volume is eight times bigger than the original r value. if r is tripled the r =3r and (3r)^3 so the volume is 27 times bigger. If r is multiplied by n the radius is nr and (nr)^3 =n^3 r^3, Therefore, the volume is n^3 times bigger than the original.
Answer:
C
Step-by-step explanation:
sorry if I'm wrong-
The dress pants cost 40 bucks....the coupon for the dress pants is y percent off the dress pants...
so the part of the expression that represents the percent that skylar will pay for the dress pants is : (1-y)40
