Francesca has 63 cm of ribbon. she will cut it into two pieces so that the longer piece is 15 cm longer than the shorter piece. what will the length of the longer piece be?

If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

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?