Answer: 10
Step-by-step explanation: subtract 5 by 45 to get 40 then divide 4 to get 10
Answer:
5r
Step-by-step explanation:
(8r + 5) - (3r + 5)
8r + 5 - 3r - 5
5r
A. 36, the reason being is because 18x 2 is 36 and 12 x 3 is 36
<h3>
Answer: 0.557</h3>
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Work Shown:

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Side note:
A similar formula is 
We can isolate the last term to get the first equation shown above.