First Estimate the Answer $35 \frac{1}{2}$ Feet If the Army Corps of Engineers Lowers the Lake

Short Answer

First estimate the answer. Then solve each application problem.
-The depth of Raccoon Lake is $35 \frac{1}{2}$ feet. If the Army Corps of Engineers lowers the lake by $3 \frac{1}{5}$ feet and then lowers it again by $2 \frac{4}{5}$ feet, what is the new depth of the lake?