Answer:
S=4.5
Step-by-step explanation:
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This should be 1.35, sorry if it’s wrong
Answer:
the top answer.............
Answer:
10x+9
Step-by-step explanation:
You first have to multiply 3 into the parenthesis because you have to use distributive property.
Once you do that you get 3x+9+7x.
Combine like terms.
10x+9