What is the y-value when x equals -12?
y=-200 – 6(x)

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

Ihonestly have no clue if it's each or none.