Answer: [tex]\dfrac{4}{1}[/tex]
Step-by-step explanation:
To find the unit rate of hair ties over cost, we can divide the number of hair ties by the cost. In this case, the number of hair ties is 20 and the cost is $5.
The unit rate can be expressed as:
Unit rate = (Number of hair ties)/(Cost)
Substitute the given values:
Unit rate = (20)/(5)
Unit rate = 4/1
The unit rate of the hair ties over cost is [tex]\dfrac{4}{1}[/tex]. This means that for every $1, Wolfe can purchase 4 hair ties.
Learn more about unit rates here: brainly.com/question/4895463