Ireally need with this for a college exam

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

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?