there are three times as many barrels in one cellar as in another; in the store above, there are half as many barrels as in both cellars; all together there are 216 barrels. How many are there in each part of the building?

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?