What is the factored form of this expression? 9x^2-64y^2

Jim makes $10.35 per hour. write an equation that jim can use to calculate his pay.

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?

Solve 3x-18=2y and 5x-6y=6 by elimination show work