Last week, brianna earned $565.75, which included a $100 bonus. she makes $11.50 an hour. which equation and solution can be used to show how many hours brianna worked last week?

a.) 100x + 565.75= 1150; x = 5.8

b.) 11.5x + 100 = 565.75; x = 40.5

c.) 11.5x−100=565.75; x=58

d.) 100x + 11.5 = 565.75; x = 5.5