I spotted this sign at a shirt shop while on holidays overseas:
One shirt costs $25. Two shirts costs $30. Seven shirts costs $100. Buy 10 shirts, get one free. How much should I have to pay for 12 shirts?
I spotted this sign at a shirt shop while on holidays overseas:
One shirt costs $25. Two shirts costs $30. Seven shirts costs $100. Buy 10 shirts, get one free. How much should I have to pay for 12 shirts?