She needs to be able to run 7.7 more miles a day.
In order to find this amount, we need to start by taking the amount she wants to run and subtracting what she is already able to. She wants to run 26.2 miles and can already run 18.5 miles.
26.2 - 18.5 = 7.7 miles
It should be negative one (-1)
So she rode the Ferris Wheel 4 times. 8/2= 4
