A=B+C+D Solve the question for b?

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.

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4