jem pastes 21 photos and 15 postcards in a scrap album. she puts 3 items on each page. how many pages does jem fill in the scrap
1 answer:
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Answer:
Step-by-step explanation:
Standard form is basically where the degrees of the terms are in descending order.
First, let's distribute the negative sign to the terms in the second parentheses:
Now, we can just combine like terms with the terms from the first parentheses:
So, our answer is: