Match each pair of angles with the correct angles relationship using the diagram

In the 30-60-90 triangle below side s has a length of and side r has a length

Can someone me with this problem . show your work .

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.