Patrick is working for his uncle, doing some construction work on a house his uncle is building. His uncle owes him $800 for the work Patrick had done earlier. Patrick will still work for him each week. His uncle will owe him an extra $100 per week for the additional work he will be doing. Which of the following expressions correctly represents how much his uncle will owe him after t weeks?
a) $800 + $100t
b) $100t
c) $800t + $100
d) $800t + $100t