How many nickels are there in seventeen dollars?

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Is the ordered pair (-10, 7) a solution to the equation y = 17 – x? yes or no

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?