Eric is standing next to a post. Eric is 5 feet (ft) tall and his shadow is 2.5 ft long. The post's shadow is 4 ft long. How tall is the post?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Which equation represents the function on the graph?

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?