Need !
problem is in the photo.

5/6+7/8what is the answer sealsdbdbshd

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?

The formula for the volume of a right square pyramid is given below, where a is the side length of the base and h is the height.