An auditorium has 20 seats on the first row, 24 on the second row, 28 on the third row, and so on and has 30 rows of seats. How many seats are in the 30th row?

An initial investment of $100 is now valued at $150. the annual interest rate is 5%, compounded continuously. the equation 100e0.05t = 150 represents the situation, where t is the number of years the money has been invested. about how long has the money been invested? use your calculator and round to the nearest whole number. years

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.