Answer:
unit price = 4$ a pound
Explanation:
3 pounds for a total of 12$, but you need to know the price of 1 individul unit, so within those 3 lbs is 3 "individul units" (aka 1 pound)
total cost = 12$ for all 3 units so divide 12 by 3 (12/3) = 4 --> Giving you the cost of 1 unit which is $4.00
Check you work : 3 units (3lbs) , you know 1 unit(pound) costs 4$ and your total you paid needs to be equal to 12$
SO: 3 (your pounds) x 4 (price PER unit) = 12
12 = 12
Youre done!