5(t+3)= -3.5 what is T?

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.

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).