Final answer:
The inequality that models the weeks you will have enough money for the ticket is: 75 + 20w >= 350.
Step-by-step explanation:
To find the inequality that models the weeks you will have enough money for the ticket, we need to consider the cost of the ticket and the amount of money you save each week.
Let's assume the number of weeks you save is represented by 'w'.
The cost of the ticket is at least $350.
You already have $75 saved, and you save another $20 per week.
So the total amount of money you will have after 'w' weeks is $75 + $20w.
To have enough money for the ticket, the total amount of money you have after 'w' weeks must be greater than or equal to $350.
So the inequality that models the weeks you will have enough money is: $75 + $20w >= $350.