Answer:
n=10.
Step-by-step explanation:
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= 
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= 
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= 
45-3n-3=2n-8
45-3+8=5n
n=50/5=10
2/3 x (9+12) is 14. Hope it helps :)
<h2>
Explanation:</h2>
As I understand, in this exercise, we have the following numbers:
By using calculator, let's convert those numbers into decimal form:
So arranging from least to greatest we have:
Put another way:
This is a basic subtraction problem :-).
You will subtract how much money the mechanic gives to the supplier; which in this case will be $20, by the total amount of the parts which is $14.56.
20-14.56 = 5.44
Therefore, he will receive $5.44 in change for the transaction.
To get $90 dollars you multiply $15 • 6. So you would multiply $6 • $6
Answer: $36
