Amber is celebrating her birthday and wants to bring in cupcakes for her classmates. each cupcake tray holds eight cupcakes and the tins are always filled. if there are twenty-seven other kids in the class, and one teacher, how many trays of cupcakes will amber need?

4 trays

Explanation:

We know that each tray holds 8 cupcakes and there are 27 other kids, one teacher, and most likely herself to serve.

To figure out how many in total she needs to serve, just add the 27 classmates, the 1 teacher, and 1 of herself to get a total of 29 people celebrating in the class.

To figure out the amount of cupcake trays needed, divide 29 by 8 to get 3.625 which can be rounded to 4 trays needed to satisfy everybody.

Hope this helps :)

if im not wrong, i believe you just $7 on the first year, and then 10% of 77 as so on