wich onenis a better deal tide 12 dollars for 92 fluid oz or gain for 7 dollars and 50 cents for 50 fluid oz

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

What’s the answer ? use the picture to see the problem

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