Kevin can travel 22 1/2 miles in 1/3 hour. What is his average speed in miles per hour?
G. 67.5 mph
H. 68 mph
F. 65 mph
I. 70 mph

What expression is equivalent to 1/2(2+3x-6)

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?