What is the median of the data set? 35 18.5 22 28.5

How many lines can be drawn through points j and k? 0 1 2 3

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

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?