To solve this we need to consider the distance 2.39x10^5 miles as the distance between the center of the earth and the center of the moon, if not we would need to know the radius of the earth and the moon.
If the distance is 2.39x10^5 miles, the orbit is = 2.Pi.(2.39x10^5) miles=1501681.288miles
To write it as a fraction first count the number of decimals and call it (which, in our case, has a value of 3). Multiply the number with to get . Then divide this number by to get from here you can either simplify (if the assignment says so, then the simplified fraction is ) or not.
It is Wednesday as it has the highest fraction of homework i.e Monday has 0.7 of homework for her classes Tuesday has 0.6 Wednesday has 0.81 Thursday has 0.5. Therefore it has to be Wednesday. Hope this helps :).