Which binomial is a difference of squares?

a) 14x^2 - 81
b) 16x^3 - 81
c) 25x^2 + 81
d) 36x^2 - 81

you

John bought 5 lemons and used 2 of them for a salad how much did he use for. a salad . he used % of the lemons.

The area of a rectangle is 54x^9y^8 square yards. if the length of the rectangle is 6x^3y^4 yards, which expression represents the width of the rectangle in yards

Kayla and alberto are selling fruit for a school fundraiser. customers can buy small boxes of grapefruit and large boxes of grapefruit. kayla sold 3 small boxes of grapefruit and 1 large box of grapefruit for a total of $65. alberto sold 1 small box of grapefruit and 1 large box of grapefruit for a total of $55. what is the cost each of one small box of grapefruit and one large box of grapefruit?