For each expression, select Yes or No to indicate whether the expression could be used to represent a 30% discount. Let x represent the original amount. a. x - 0.7

b. 0.3(x-1)

c. 0.7x

d. x - (0.3x)

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

this "question" looks more like a project is there any other info you can give me about this. it could be too complex for someone else to do on this website