I'm not sure how to do this problem

The San Bernardino County Fair hires about 125 people during fair time. Their hourly wages range from $5.90 to $8.70. California has a state income tax of 9%. Sandy Denny earns $8.70 per hour, George Barney earns $5.90 per hour (assume this is the current minimum wage). They both worked 36 hours this week. Both are married; however, Sandy claims 2 exemptions and George claims 1 exemption. Assume a rate of 6.2% on $128,400 for Social Security and 1.45% for Medicare. a. What is Sandy's net pay after FIT (use the Table 9.1 and Table 9.2), Social Security tax, state income tax, and Medicare have been taken out? (Round your answer to the nearest cent.) Sandy's net pay after FIT b. What is George's net pay after the same deductions? (Round your answer to the nearest cent.) George's net pay after FIT c. How much more is Sandy's net pay versus George's net pay? (Round your answer to the nearest cent.) Difference in net pay