Dexter is 35 years old and starting an IRA (individual retirement account). He is going to invest $5,000 on January 1 of each year. The account is expected to earn 5% interest, compounded annually. How much money will Dexter have in his IRA when he retires, at age 65?

Ben frank is an electrician who installs lighting fixtures. he charges (in dollars) his clients 15h+40f15h+40f where hh is the number of hours worked and ff is the number of fixtures installed. how much does ben frank charge when he works 77 hours and installs 99 fixtures?