-7x+3y=2
dont know how to do it thanks.

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds. then use the distributive property and mental math to evaluate the expression.

Jonathan can throw a baseball 10 1/3 yards. his brother joey can throw a baseball 13 1/2 yards. how much father can joey throw the ball?