Identify the independent variable and the dependent variable. The number of hours (h) worked and the amount of money (m) earned.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Can someone me out here and the tell me the greatest common factor

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?