[tex]D)480yd[/tex]
1) Since the question tells us that Manny runs across the field 5 times, we can write out the following:
[tex]5\times24^{\doubleprime}=120^{\doubleprime}[/tex]
2) According to the given scale, in this model 1 inch = 4 yards then we can convert from inches to yards like this:
[tex]120\times4=480yd[/tex]
So Manny ran a total of 480yds altogether
