728.56 x3 (because that is the days he is working) = $2185.68
2185.68 x4 (because that’s how many week are in a month) = $8742.72 per month
Neil will be earning $8742.72 per month
33 1/3% is the same thing as 0.3 repeated or typically 0.33, and as a fraction it is equivalent to 1/3.
I'd say A. 8000, because you'd get the most answers and the biggest variety in answers for a more accurate sample.
1) Would be c+15 because you can combine 19-4
2) Would be m+2 because you can combine 12-10