The top of a hill rises 274 feet above Checkpoint 1. What is the altitude of the top of the hill? checkpoint 1 = -189

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)