What is the equation of the line that is perpendicular to y=1/5x+4 and that passes through (5,–4)?

Which equation requires the division property of equality to be solved?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

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?