Answer: The required cost per ounce of cinnamon is $2.25.
Step-by-step explanation: Given that a 1.8-ounce jar cinnamon costs $4.05.
We are to find the cost per ounce of cinnamon.
We will be using the UNITARY method to solve the problem.
We have
The cost of 1.8 ounces of cinnamon = $4.05.
Therefore, the cost of 1 ounce of cinnamon is given by
[tex]\$\dfrac{4.05}{1.8}=\$2.25.[/tex]
Thus, the required cost per ounce of cinnamon is $2.25.
