On January 1, 2009, Kendra owed $16,887 to her friend Joseph, who was kind enough not to charge Kendra any interest. Each month during 2009, Kendra paid Joseph some of the money she owed. If Kendra still owed Joseph $7,683 on January 1, 2010, what was the average amount of Kendra's monthly payments?

In one particular month, a person has a balance of $ 3,490 on their credit card for 9 days. They then make a purchase and carry a balance of $ 3,980 for the next 11 days. Then this person makes a payment and carries a balance of $ 1,640 for the remaining 11 days in the month. What is their average daily balance rounded to the nearest cent? $

If a car priced  at $17,305 is offered for nothing down with 60 monthly payments of $397.63, what is the APR?

On January 1, Veltron International has inventory worth $599,900 at cost. At the end of the year, the cost value of the inventory was $173,200. If annual cost of goods sold was $1,409,170, find the inventory turnover at cost for the year. Round your answer to the nearest tenth.