Alocal hamburger shop sold a combined total of 605 hamburgers and cheeseburgers on friday. there were 55 more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday?

Given f(x)=2x^2-8x+6 and g(x)=3x-1 find f(x) +g(x) a. 2x^2+5x+5 b.2x^2-11x+7 c. 2x^2-5x+5 d.2x^2-5x-5

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.