Answer:
unit cost of each lemon is, $0.4
Explanation:
Unit rate defined as the rate are expressed as a quantity of 1, such as 3 feet per second or 8 miles per hour, they are called unit rates.
As per the given statement: a grocery store sells a bag of 5 lemons of $2.
⇒ Number of lemon = 5
And Cost = $2

Substitute the given values we get;

Therefore, the unit cost of each lemon is, $0.4