Answer:
$13.8
Step-by-step explanation:
Based off the information given in the question, we know that 9.66 is equal to 7/10s of the cost. Thus, in mathematical notation:
[tex]9.66 = C\frac{7}{10}[/tex]
Where C represents the total cost of the preset. Thus, to find the total cost, we simply solve this single variable equation, by multiplying both sides by the 10/7.
Thus, we get C = $13.8
