last chance mine lc purchased a coal deposit for 750000 it estimated it would extrac/

a. What is Last Chance’s cost depletion for years 1, 2, and 3?
b. What is Last Chance’s percentage depletion for each year (the applicable percentage for coal is 10 percent)?
c. Using the cost and percentage depletion computations from the previous parts, what is Last Chance’s actual depletion expense for each year?