What is the solution set for the open sentence with the given replacement set?
13−x=7, {4, 5, 6, 7}
a. 4
b. 5
c. 6
d. 7

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 fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4