Let's say that x is the number of days he tweets. Now, if he tweets any number of days, we can represent all of that with just x. So out expression will look like:

Hope this helps!
Answer:
Y = 40
Step-by-step explanation:
First, find the slope-intercept of the table
Slope-intercept form: y = mx + b

(3, 1) and (6,2)



Find b using (6,2):



What will be the value of Y when X = 120?
Substitute 120 for x into 

(120, 40)
Therefore, when X = 120, Y = 40
Hope this helps!
Answer:
0.75m/s
Step-by-step explanation:
speed = d/t
The answer is here. Hope I did help you.