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:3/6 of the pie to friends
Step-by-step explanation:
15 servings because 11.25/0.75=15
3/4=.75
11 1/4=11.25
Answer:
$28.12
Step-by-step explanation:
$9.19 x 40 = $367.60 x 7.65% = $28.12