The region shaded below a solid boundary line
I belive it's 5.

Because it's Distance divided by Time, because your finding speed.
Okay, well we're gonna find the LCM (least common multiple)
3: 3, 6, 9, 12, 15, 18, 21
7: 7, 14, 21
So...21 days
B because 4.25 (decimals are easier for me) then you times by 3=12.75
but multiply it by 1.25 which equals 15.94
46 i believe !
reason: 13.3 + 10 + 10 + 11.7 = 46