Multiply two kilometers per day by 1000 meters per kilometer to get 2000 meters per day. Multiply by two days to get 4000 meters, which is the answer.
(7/15)/(3/5)
easy
(a/b)/(c/d)=(a/b)(d/c)
invert and multiply (what it does is it cancels the bottom and makes it one)
(7/15)/(3/5)=(7/15)(5/3)=35/45=7/9
answer is C
If you look at the end points you see they are different the hole one means the line doesn't reach that point but gets really really close the solid one means starting at that point.
(5 * 4)/(2 * 1) = 20/2 = 10 or A
for starters change the reciprocal on numbers 10 and 11
