Revenue function:R(x)=60x, Cost function:C(x) =12+7x Profit function : P(x)=

How can you tell when x and y are not directly proportional?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.