A refillable muy costa $12. Each timé you fill the coffee mug up it costs $2.20. If penelope bought the mug, how many refills can she buy to spend $34?
The mug cost $12 as it is, so first you subtract 12 from 34, which is 22. From there, you divide 22 by 2.20, which would be 10. Therefore, she can get a mug and 10 refills for $34.
