Answer:
<h2>7n + 28</h2>
Step-by-step explanation:

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Yes, you need to make the denominators the same. 2/3 becomes 8/12. So now you add 7/12 and 8/12, getting 15/12. But you're not done you need to simplify 15/12. The answer is 1 1/4.
Answer:
-8xy+3x+2z
x+3yz-8
Step-by-step explanation:
The answer is A. -29.75mm^3/day ;)
percent means out of 100
35/100
divide the top and bottom by 5
7/20