Thirty car pass through a certain toll booth each minute. at that rate, how many cars are expected to pass through the toll booth each half-hour

a 15
b 60
c 450
d 900

What is x and y (use substitution? ) 5x+3y=38 and y=3x+8?

G(x)=x2-16xb=-16, so =16 = 649(x) = (x2 - 16x + 64) - 649(x) = (x - 1)2-

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?