Answer:
-49x - 18 is the final answer!
We can’t answer the question because we need a graph or points.
Step-by-step explanation:
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Let x be the number of days.
If Ashley posts 17 status updates each day, then after x days Ashley posts 17x status updates.
If Roberto posts 21 status updates each day, then after x days Roberto posts 21x status updates.
Part A. The combined number of posts for Ashley and Roberto after x days is:
17x+21x.
Part B. The difference between number of posts for Ashley and Roberto after x days is:
21x-17x.
The two lines are tangent to the circle at points that are 180 degrees apart.
