3.5 Pounds of cheese cost $12 determine the cost per pound

$3.42

Step-by-step explanation:

$12 in all

3.5 lbs

$12 divided by 3.5 = $3.42

$3.42 per pound.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

47 - 90 = 43

43 - 180 = x

x = 137