Submarine a is positioned at –1,100 feet in relation to sea level. submarine b is positioned at –800 feet in relation to sea level. each submarine needs to be 200 feet below sea level in 30 minutes. which compares the speeds at which each submarine needs to travel?

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?