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:
35
Step-by-step explanation:
0.25 x 140 = 35
Answer:

Step-by-step explanation:
5*10 = 50. 50 = 25+25. The sqrt of 25 is 5, so 2 5's make 10.
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