a.) The number of ounces of food that were in the bag 12 days after Andre bought it would be = 28 ounces.
b.) The number of days it would take for 16 ounces = 24 days
c.) The weight of the bag before it was opened = 56 ounces
How to determine the days and the weight of the cat food using a graph?
A graph can be used to represent the relationship that exists between two variables which can be proportional or not.
From the given graph, the weight of the cat food is plotted against the the number of days since the bag of food was bought.
Following the line of best fit;
For question a.) The number of ounces of food that were in the bag 12 days after Andre bought it would be = 28 ounces.
For question b.) The number of days it would take for 16 ounces = 24 days.
For question c.) The weight of the bag before it was opened = 56 ounces.
For question d.) it took the bag 32 days to become empty.