Jin teaches tai chi at a local community center. He charges a one-time $12 enrollment fee and the cost of each class is shown below. Let x represent the number of classes and y represent the cost of each class.

Cost of Classes (not including enrollment fee)
Number of Classes (x) 1 2 3 4
Cost of Classes (y) $13.00 $22.00 $31.00 $40.00

Based on this information, what will it cost, in dollars, for Mark to take 7 classes?

Question

Jin teaches tai chi at a local community center. He charges a one-time $12 enrollment fee and the cost of each class is shown below. Let x represent the number of classes and y represent the cost of each class. 

Cost of Classes (not including enrollment fee)
Number of Classes (x)	1	2	3	4
Cost of Classes (y)	$13.00	$22.00	$31.00	$40.00


Based on this information, what will it cost, in dollars, for Mark to take 7 classes?

anonymous · Answer

it looks like the cost of the first class is 13, and then an additional 9 for each additional class. So, if 4 classes is 40.00, there are an additional 3 classes to account for. what is 9 times 3?

anonymous · Answer

18

anonymous · Answer

sorry 27

anonymous · Answer

27 + 40 = 67 

now add the enrollment fee and that will be your answer!

anonymous · Answer

which one is the additional fee?

anonymous · Answer

"He charges a one time $12 enrollment fee"

anonymous · Answer

79

anonymous · Answer

exactly :) good job