A salesperson is paid $400 per week, plus 10% of the total value of the sales she makes for the week. Let s represent the total value of the sales.
Which expression represents the amount of money the salesperson is paid in a week?
A. 0.1(400s)
B. 400 + 0.1s
C. 0.1 + 400s
D. 0.1(400 + s)