I need some help with this math problem, can anyone help?

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

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?

The tile along the edge of a triangular community pool needs to be replaced? ?