Raffle tickets are being sold for a fundraiser. the relationship between n, number of raffle tickets sold, and a, amount of money in dollars raised, is given by the function below.

a(n)=4n-25

what is the equation of the inverse function n(a)?

Kevin and randy muise have a jar containing 78 coins, all of which are either quarters or nickels. the total value of the coins in the jar is $13.90. how many of each type of coin do they have?

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

Describe a situation that you could represent with the inequality x< 17