Simplify each expression.
Can you help me with 1 2 3 4 5 6 thanks

17 in long 1.3 ft wide and 8in high what is the volume

In what organelle does photosynthesis take place?

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?