Is the relation a function?
{(2, 15),(15,4),(-9,-7), (13, 14)}

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 ̊ and to the other is 52 ̊. how far apart are the cars?