The total amount of cookies that were made was 48.
If they give half of the cookies (48 cookies total) to the class, the give half of what is left (24 is left), and they eat 12, the the answer is 48 cookies total.
It is already simplified? no more possible steps can be done
64 inches is greater than 5 feet.
64 inches equals 5.33333 feet.
I hope this helps :)