Which value for x makes the sentence true?
3x - 9 = 12

a-3/7 (fraction)
b-8
c-7/9 (fraction)
d-7

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is