Let "x" be a positive integer representing a person's age. Which statement matches the phrase, "You must be at least sixteen years old to drive a car?"

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3

Who long does it take to drive 150 miles at 45 miles per hour

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.