How many times larger is the surface area of the larger prism compared to the surface area of the smaller prism?

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

What is the missing step in this proof ?

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212