Sarah borrowed $500 from her mother. She worked for her sister Allison, who paid her $225 at the end of the week. Her sister Cosima
repaid the $150 that Sarah loaned her. Her sister Helena gave her half
of the $200 they found on the ground while walking together. Sarah
and her brother Felix hosted a party and made $800, $125 of that
amount going to Sarah. Does Sarah have enough money to repay her
mother's loan? Explain your answer in complete sentences.