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:
wrong
Step-by-step explanation:
(a+b)^2=(a+b)(a+b)
=a(a+b)b(a+b)
=a^2+ab+ab+b^2
=a^2+2ab+b^2
i hope it helps you
Sides, or lengths and widths
Answer:
D is the correct answer i think
Step-by-step explanation:
50 / 0.40 = 125
To check your answer, 125 * 0.4 = 50