What would both of them be one an two ???

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Abcd is a parallelogram find the valuse of x

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?