Question

CHECK MY WORK, please? :)

1) Susannah purchased a lawn mower for $1,250 using a six-month deferred payment plan. The interest rate after the introductory period is 25.99%. No down payment is required, but there is a minimum monthly payment of $30. What is the balance at the beginning of the seventh month if only the minimum payment is made each month during the introductory period?
My answer: $1,070.00