Tyler has two parents. Each of his parents also has two parents. We say that Tyler's eight great-grandparents are "three generations back" from Tyler. At which generation back does Tyler have 262,144 ancestors?

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?