Stage 9 - Q9 - 5 marks

Exam-Style Problem

Browsing as Guest. Progress, bookmarks and attempts are disabled. Log in to track your work.

19105

A plan costs USD 9 plus USD 3 per item. A learner writes \(C=(9+3)n\). Explain the error and correct it.

Hint

Test the two formulae for zero or two items.