Scott purchases food for his dog in large bags and feeds the dog the same amount of dog food each
day. The amount of dog food left in the bag at the end of each day can be modeled by an arithmetic
sequence. On a particular day, Scott opened a new bag of dog food and fed his dog. By the end of the third day there were 115.5 cups of dog food remaining in the bag and at the end of the eighth day
there were 108 cups of dog food remaining in the bag.
a) Find the number of cups of dog food
i) fed to the dog per day. Show your work.
