Step-by-step explanation:
You have to first find the pattern, which in this case we can see that the numbers on the left are being multiplied by 512 to result in the numbers on the right.
next, you have to find the average of 512. you’d probably have to divide 512 by how many hours worked which would be 4. i might be wrong on that though.
Your answer would be $13.50 because is 3 bags cost 6.75 and you need 6 bags then just multiply the 6.75 by 2 and you get your answer :)