hard for me question

Question

Kyle has his own math tutoring service. His weekly fees are shown in the table.

Number of Hours	Per Week (x)	Weekly Fees (y)
1	$27
2	$48
3	$69
4	$90

Which equation represents the relationship between the number of tutoring hours per week and his weekly fees?

It is number of hours per week together so 1,2,3, and 4 are that weekly fees are in money form

Answer 1

y=21x +6

y(1)= 21+6=27

y(2)= 42+6=48

y(3)= 63+6= 69