Let a=2018, we can rewrite the question into

substitute back a = 2018, obtained

well, there is something wrong here
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Hello there,
Your correct answer would be C.) m=5d.
The reason is so because 5 and d are going to be multiplied and so sence they would be multiplied this mean's that you will see how much money he earned in (m) days.
Correct answer would be "C.) m=5d"
Hope this helps!
Answer:
X=70
Step-by-step explanation:
180-120=60
60 + 50=110
180-110=70