Answer: At least 9 vehicles
Step-by-step explanation:
Let the number of vehicles be represented by x
Based on the information given, will be calculated using the equation below:
2400 + 250x ≥ 4500
250x ≥ 4500 - 2400
250x ≥ 2100
x ≥ 2100 / 250
x ≥ 8.4
The person must sell at least 9 vehicles