Please help me and explain im down to the highest degree

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. what distance from city a is the point where the truck and the car will meet?

W-16=-12 solve each one step equation plz

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height