What is the difference r+2/r+4 - 3/r+1 a. -1/r+3 b. r^2-1/(r+1)(r+4) c. r^2-10/(r+1)(r+4) d. r^2+14/(r+1)(r+4)

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

Which of the following represents the factorization of the trinomial below? x^2+7x-30