[50 POINTS + BRAINLEST]
Sand is poured to create a cone-shaped pile. After some time, the diameter of the pile is 12 in. and the height is 10 in. A little while later, the volume of the pile increases by 80%, and the diameter is 18 in. What is the exact volume of the pile of sand after the increase? What is the height of the pile after the increase?

11664/3

Step-by-step explanation:

yes

step-by-step explanation:

yes

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,