Answer:
7
Step-by-step explanation:
Look at the x-axis at -1, it [-1,7]

so hmm whatever "p" and "c" are, we know that
p + c = 10.
and we also know that
3p + 2.2c = 25thus

how much will it be needed for caramel popcorn? well, c = 10 - p.
Just use the formula time = distance / speed
395.1/79= 5.001
It will take the train approximately five hours to reach Memphis