A store pays for a backpack $13 and sells it for $20. Because of slow movement they need to markdown its price. What is the lowest that they can mark down the backpack if they want to still make $3 in profit?
A.25%
B. 20%
C. 10%
D. 15%

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

step-by-step explanation:

the answer to 1/4x+5/3x-4=2-1/12x is x=3

hope this if needed hmu