Question
A taxi service charges the following rates:

Distance travelled Charge
First kilometre or less $3.50
Every 400 m thereafter or less $0.80

Shannon paid a taxi fare of $7.50. What was the greatest distance that Shannon could have travelled in the taxi? Give your answer in km.
2 m

Click button first when a symbol is required. X

A taxi service charges the following rates:

Distance travelled Charge
First kilometre or less $3.50
Every 400 m thereafter or less $0.80

Shannon paid a taxi fare of $7.50. What was the greatest distance that Shannon could have travelled in the taxi? Give your answer in km.