Factor completely

(x^2 - 4)(x^2 + 6x + 9) =

Grandma made an apple pie. josh and his brother joe finished 4/5 of it. then 3 friends came over and shared the left over. how much pie did each friend eat

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

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?