X06 · Optional projects job
Five kits cost $12 each plus one $8 fee. Supplied budget $100. Two unused kits may be removed, and the fee stays. Compare plans.
Use scrap paper or a private explanation. No purchase, household information or public performance.
Adult teaching after an own try
Answer
First:$68/$32 left. Revised:3 × $12 + $8=$44/$56 left.
Why
Separate fixed and repeated costs.