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Answer:
D.) All integers from 0 to 30, inclusive.
Step-by-step explanation:
If Rebecca has 30 paintings to sell and x is the domain, then any integer from 0-30 inclusive is your answer. It isn't sure that Rebecca will sell a painting, she can't sell more than she has, and she can't sell parts of a painting.
-1.8h-0.7 You combine like terms.
