You are a cross-country running coach laying out a practice course for an upcoming race. You measure fifteen 100 meter course segments, followed by twelve 200-meter segments . How many kilometers will your students run on this course ?

i think it's b

step-by-step explanation:

because the graph is 2 above (0,0)

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10