well, he worked 35 hours
he makes 15.5 per hour in 35 hours will be 15.5 * 35
then he gets a 10% bump from Mr. Davis
so. he really made (15.5 * 35) plus 10% of that, 10% = 10/100 = 0.1
so (15.5 * 35) + (15.5 * 35)(0.01)
then those hourly wages take a bite of 5% from the taxman
subtract 5% of that, 5% = 5/100 = 0.05
so subtract (15.5 * 35)(0.05)
then add Mr. Davis generous bonus, the bonus is not taxable,
the wages, including the 10% increase, ARE taxable