Answer:
In order from the top to the bottom they are
Q
R
P
M
L
F(x)=3 is a horizontal line to the x-axis, which means that the y- intercept is (0,3) and there is no x-intercept.
Y- intercept is (0,3)
6E1 divided by 2E-1 equals 300
3/7+3/7= 6/7
7/7-6/7=1/7
Dan had 1/7 of water left
Hope this helps!