The chart below shows the salary figures for 5 nfl football teams in 2000, with the number of wins each team achieved during that season.

b

step-by-step explanation:

the word superfluous means unnecessary

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

positive

step-by-step explanation:

the quadrant is facing upwards

13cm

step-by-step explanation:

(apex)