1) The area is 81 Units
2) the picture of the shaded region isn’t provided so I am unable to answer sorry
60 cupcakes because u can put 5 rows with 12 in each or u can do 12 rows with 5 in each.
It is linear because it is a straight line when graphed. It is not proportional because there is not always a constant ratio between them.
the second is a negative slope due to the fact the line is going the the left and the ind variable is breakfast dep is performance