Donnelle has already saved $350.00 Donnelle can save $45 per week from her part-time job. How many weeks will it take her to save at least $2150 to pay cash for a used car?

Answer: 40 weeks

Reason:
This is because she already saved up $350 so to find the remaining amount of money she has to pay, you do 2150 - 350 which is $1800.
Then,
To find the number of weeks to save, you have to do $1800 divided by $45 which is 40.
So now you know that she needs to save up for 40 weeks