You invest $230 to start a sandwich stand and decide to charge $4.25 per sandwich, set up a linear model that determines your profit or loss based on the number of sandwiches

So if you price tax (for you ) for $.10 cents  each and you sell 60 sandwich's in one week at  least your profit would be $31 approximately since bread last longer and you still have ingredients make sure you always have some and use coupons and discounts to buy deli meats and bread + condiment or what ever you need  to take the money you earn and buy and after 8 weeks you earn $1,500 then after buying a lot of stock you have $1,300 upgrade to a 500$ buying period to get water drinks and other popular food. sandwich to 4.00 $ water is 2 for 1.50 and any other food over 3.00 yu get the profit of about $2600  getting a used food trruck to caryy on th buisness