Sheila has been offered a 20%discount on her current car insurance premium if she agrees to add on a car-repair warranty that will cost her $250 per year. If Sheila's current premium is $1,900, how much will she pay after the 20% discount is applied and then she is charged for the car-repair warranty?

Melanie deposited $10,000 into an account at 5% compunded quarterly. Two years later, she deposits another $20,000 into that account; however the money will now be compunded quarterly at 3%.  What will be her total account balance 6 years after her inital deposit?

Sarah's comprehensive major medical health insurance plan at work has a deductible of $750. The policy pays 85 percent of any amount above the deductible. While on a hiking trip, she contracted a rare bacterial disease. Her medical costs for treatment, including medicines, tests, and a six-day hospital stay, totaled $8,893. A friend told her that she would have paid less if she had a policy with a stop-loss feature that capped her out-of-pocket expenses at $3,000. The policy with the stop-loss feature has the same deductible and coinsurance requirement as Sarah's current policy. Determine which policy would have cost Sarah less and by how much. (Round your intermediate calculations and final answer to 2 decimal places.) Current policy Stop-loss feature No difference in Sarah's cost for this claim. Difference amount

Maddy Brown needed​ start-up money for her landscape service. She borrowed $11,000 for 42 months and paid ​$1,617 interest on the loan. What interest rate did she​ pay?