Final answer:
When experiencing a flat tire or blowout, a motorist should remove their foot from the gas pedal and not use the brakes while gradually slowing down.
Step-by-step explanation:
When a motorist experiences a flat tire or blowout, they should do the following while gradually slowing down:
- Remove their foot from the gas pedal
- Do not use the brakes
By removing their foot from the gas pedal, the motorist allows the car to naturally slow down without applying any additional force. This helps to prevent any further damage to the tire or wheel. Not using the brakes prevents sudden stops or skidding, which can be dangerous in such situations.