Solve
-It Took Sara's Mother 9 Hours Round Trip to Drive

Multiple Choice

Solve.
-It took Sara's mother 9 hours round trip to drive to the University and bring Sara back home for spring break. If the University is 2471/2miles from home, find her mother's average speed.

A) $27 \frac { 1 } { 2 } \mathrm { mph }$
B) 56 mph
C) 55 mph
D) $55 \frac { 1 } { 2 } \mathrm { mph }$