Why must an air traffic controller know a plane's velocity? A. to know how far away the plane is
B. to know how high the plane is flying
C. to know the plane's overall rate of motion
D. to know the plane's direction as well as its speed

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

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?