H08 · Optional home job
Need exactly 18 cards. Offer A: six for $12. Offer B: three for $9. All prices made up; whole packs only.
Use scrap paper or a private explanation. No purchase, household information or public performance.
Adult teaching after an own try
Answer
A:3 packs/$36. B:6 packs/$54. A is $18 less.
Follow
Check both supply 18 cards before comparing costs.