Answer:
The cost of the mug is of $6.50.
Step-by-step explanation:
The cost of the mug and r refills is given by the following equation:

Cost of the mug:
The cost of the mug is found when no refills are bought, that is, C when
, which is 

The cost of the mug is of $6.50.
Answer:
$57.52 I believe that is the correct answer.
Answer:
53
Step-by-step explanation:
That is confusing do u have like pic of the question
Answer: 3/4
Step-by-step explanation: At the top you can see it is dividing by two so whatever you do to the numerator has to be done to the denominator. 6÷2=3 and 8÷2=4.
Hope this helps!