Multiply 2x^2-4x 6c^2-5x

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0