Final answer:
The cost per wearing of the winter coat is $1.25. Option b is correct.
Step-by-step explanation:
To calculate the cost per wearing of the winter coat, we need to consider the initial purchase cost, the cost of dry cleaning, and the number of times the coat will be worn.
The initial purchase cost of the coat is 125 .
The number of times the coat will be worn in a year is 120.
The formula to calculate the cost per wearing is: Cost per wearing = (Purchase cost + Total cleaning cost) / Number of times worn
Plugging in the values:
Cost per wearing = ( 125 + 20) / 120
Cost per wearing = 145 / 120
=1.25
Therefore, the cost per wearing of the winter coat is approximately $1.25