What is the calculation for 15-(0.7×3)

What is the area of the trapezoid shown ?

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

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?