Tim has some marbles. Sue has twice as many marbles as Tim. Jim has 15 marbles. Tim, Sue and Jim have a total of 63 marbles. how many marbles does Tim have

What is the least common multiple of 16 and 3?

Which graph corresponds to the function f(x) = x2 + 4x – 1?

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?