If the student accepts job A, he will be paid a total of
total pay = ($347.50 / week)(16 weeks) = $5560
Then for the second job,
1st month = $1,600
second month = $1600 + 0.1($1600) = $1760
third month = $1760 + 0.1($1760) = $1936
The total amount that she will be paid for the second job is $5,296
The difference between two pays is $264.