Solve the exponential equation for x

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?

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?