$9.$ Go to the Earnings Projections worksheet. Pranjali has entered most of the income and expense data on the worksheet. She knows the income from municipal grants will be $$25,000$ in $2025,$ and she estimates it will be $$40,000$ in $2029.$ She needs to calculate the income from municipal grants in the years $20262028.$ The grants should increase at a constant amount from year to year.

Project the income from municipal grants for $20262028$ using a Linear Trend interpolation.