Help Me With This Question Please! I'm Answering This Question For A Hard Time! :(

Step-by-step explanation:

The main goal in any equation is to get the unknown variable all by itself.  In this case that means moving the fraction of 7/8 over to the other side of the equals sign.  On the left, the fraction is being subtracted; that means that to move it to the other side, we add it since adding is the opposite of subtracting.

On the left side, if you have 7/8 and then take that 7/8 away, it's gone completely.  What we have now is

We need a common denominator so we can add 4 (which is 4/1) to 7/8.  8 is the common denominator.

and

giving us

answer:

your answer is: c. 196 7/8 in^3.

so, converting firstly the mixed fractions to improper fractions and then "adding".