A tank had 90 gallons of water in it. The tank is drained at a rate of 5 gallons per minute. Which graph represents the number of gallons of water, yy, in the tank xx minutes after it begins to drain?

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.

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

(60 points) explain this in detail