Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30 ?
A, B,C or D?

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.