Shelby’s total closed-end credit for her car (including all interest) cost $9,478.58. The table shows the schedule of her payments for the first 4 years.

A 4-column table with 4 rows. Column 1 is labeled Year number with entries 1, 2, 3, 4. Column 2 is labeled Balance with entries 7,000 dollars, 5,997 dollars and 39 cents, 4,617 dollars and 69 cents, 3,016 dollars and 21 cents. Column 3 is labeled monthly payment with entries 180 dollars, 180 dollars, 180 dollars, 180 dollars. Column 4 is labeled End of Year Balance with entries 5,997 dollars and 39 cents, 4,617 dollars and 69 cents, 3,016 dollars and 21 cents, 1,157 dollars and 28 cents

What is the total amount of interest Shelby will pay for the car loan?

How many more years will it take Shelby to pay off her loan?