3+2 is 5.
1/7 +1/7 is 2/7.
Thus, the answer is 5 2/7.
What this question is asking, without all the wording, is what is 75% of 1400. You can easily find this by multiplying 1400 by 0.75. This will be your sales tax.

Sales Tax: $1050
Be QuItE pEaSaNt!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
5.2/0.052 is 100, and 100 is 10^2, so the missing divisor is 10^2
EMILY ITS ME MIA!! I SEARCHED UP THE ANSWER BECAUSE I DIDN'T KNOW IT EITHER!!