Answer: 
Step-by-step explanation:
The formula for finding the nth term of an arithmetic sequence is given as:

first term = -15
common difference = -6 - (-15) = 9
number of terms
substituting into the formula , we have :


Each classroom donated around 320 cans(or more) of food.
320x28=8,960.
Answer:
Grease bottoms only of 12 muffin cups or line with baking cups. ... I made some changes to the recipe;
Step-by-step explanation:
I added 1 cup milk, 1 cup chips, 1 cup ... was way too much batter for 12 muffins; I ended up making two trays and they were done in 18 minutes. I give it four stars only because of all the changes I had to make
B 5x+20 hope this helps!!