Jackie's parents invested 3000 into a common stock earning 10% when she was born. How many times will Jackie's investment double before age 36

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?

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

Which of the functions graphed below has a removable discontinuity?