4. You get an estimate to paint your house of $2850. You were told that this is 18% below last years cost what was last years cost?

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

if you was gonna solve for a, a is a   < -12