Answer
She ran $7.15$ miles in all
Work Step by Step
The distance around Dunning Pond is $1 \frac{1}{10} = \frac{11}{10}$ miles.
She ran $4 + 2 \frac{1}{2} = 4 + \frac{5}{2} = \frac{13}{2}$ times.
In total she ran $\frac{11}{10} * \frac{13}{2} = \frac{143}{20} = 7.15$ miles
