As the values for one variable increase from one person to another, the values for a second variable tend to decrease. This is an example of a(n) relationship.

49xy +34y - 72z. determine the degree of the polynomial

43lbs of tomatos cost $387. how much would 41lbs cost

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?