How much do you need to invest to earn 2000 dollars in interest at a rate of 7% over 15 years?

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

yes

step-by-step explanation:

yes

the solution, from the graphing of the two lines, is (3,2), i.e., x = 3, y = 2.