Carter has 60 balloons. 4/12 of the balloons are black, and 3/12 of the balloons are white. the rest of the balloons are red. which series of calculations shows how many red balloons carter has?

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

[15 points]find the quotient with the restrictions. (x^2 - 2x - 3) (x^2 + 4x + 3) ÷ (x^2 + 2x - 8) (x^2 + 6x + 8)