Ineed more math , the! cement truck a can pour 200 cubic ft of concrete in 20 minutes. it only takes truck b 15 minutes to do the same job. if they both work together, how long will it take them to pour the 200 cubic feet? i need setting up the problem and solving it, you!

What are the sotions to the quadratic equation 9x^2=4

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?