Alexa waited for the Dubai Shopping Festival to buy her new laptop. She found a laptop amounting AED 4,500 and was selling at a discount of 30%. How much did she save by waiting? How much did she pay for the laptop?

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step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

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