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Answer:
D: 20h + 45 = 165
Step-by-step explanation:
20 for EACH hour means that there's a variable (h) attached to 20 so it has to be 20h
Because of that, we can eliminate choices A and B.
Charges mean that it's ADDED to the price so it has to be 45 PLUS 20h
20h + 45 = 165