<u><em>It cannot be simplified. </em></u>The 54 and the 2 cannot be reduced because the 2 is attached to the +1 and it is against the laws of mathematics to do that.
2/9 hr = 2/3 mi
x4.5 x4.5
1hr = 3mi ----> 3MPH
so it is 3 miles per hour (Find the answer that matches this since i didn't have the answer choices.)
C an increased leg length causes a decrease in the time of a mile run I believe
Your answer is gonna be 8