Solve
-The Area of Mark's Backyard Is About 5 Times $3590 \mathrm{ft}^{2}$

Solve.
-The area of Mark's backyard is about 5 times the area of Jon's backyard. The area of Mark's backyard is $3590 \mathrm{ft}^{2}$ . What is the area of Jon's backyard?

A) $3590 \mathrm{ft}^{2}$
B) $3585 \mathrm{ft}^{2}$
C) $831 \mathrm{ft}^{2}$
D) $718 \mathrm{ft}^{2}$