What sum is represented by the following number line? a. 2 3/4 + (-3 1/4) = -1 2/4
b. 2 3/4 + ( -4 1/4) = -1 2/4
c. -1 1/2 +2 3/4 = 4 1/4
d. 3 1/4 + (-4 3/4) = -1 2/4

please help

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

22.83 repeating

step-by-step explanation:

137 ÷ 6 is 22.8333333 therefore we understand that 3 is repeating.

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