The basic equation for calculating compound intrest is a = p(1 + r/n)^(nt). if $2,200 is invested at the intrest rate of 5% per year, compound quarterly, how much will the investment be worth at the end of 8 years? show your work.

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