A music store receives shipments of recorders and harmonics. A shipment of 5 recorder and 4 harmonics costs $62. A shipment of 10 recorders and 3 harmonicas
costs $84. Find the cost of a recorder and a harmonica.

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x