Question

If I spend 40$ on 5 pounds on concrete. What is the unit rate in dollars per pound

I need the answer and please explain how unit rate works cause I don't know lol

Answer 1

8$/lb

Explanation:

because 8 x 5 is 40 there for each pound would be 8$ if there are 5 pounds

Answer 2

The correct answer is $8 per pound