Which is the value of x?

The parabola opens: y=√x-4 (principal square root) up down right left

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?

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)