Get the calculations right and the long answers up a level.

Edexcel 9BS0 lessons you work through, questions with the reason behind every answer, and feedback from Mia on written answers.

Try an exam-style question

Question 11 mark

A bakery sells 10,000 pies a month at £4. It raises the price to £4.40 and sells 9,300. What happens to monthly revenue?

Break-even, margins, elasticity and investment appraisal, worked line by line.

Each wrong option names the slip that makes it tempting.

Write a 4, 8, 10, 12 or 20-marker and see the level it reaches and what lifts it.

Every lesson, question and written answer opens with a free account. The full course and its price come later.