400 quarts into a container that holds 4/7 of a quart. how many containers were used?

What is this equation in point-slope form?

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

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?