I can't see it because your picture is too low quality, and also because low pixels. Sorry, but if you actually tell me a question, I would answer it, no dought. And so you just would like, 300+5%, is 15, so you would get 1575 as an weekly average, and you probaly wondering, its wrong, but its not because no one works 7 days a week, so $1575.
C) Tom did not distribute to both terms in parentheses.
Step-by-step explanation:
Addition within a paranthesis has a distributive property to the multiplier outside the paranthesis. Ignoring this will lead to a wrong value for the operation.