What is the area of the triangular region enclosed by the x-axis and the lines y = x and y = -2x + 12?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Just tell me how to set up the equation.

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.