Answers and explanations:
87. The domain of added functions includes the restrictions of both. So the range of the added function in this question is [-4, 3]
88. When finding the domain of a divided function we do the same as adding, but with an extra rule: g can't equal zero. So for this question the domain is (-4, 3)
89. To graph f + g you add the y-values for each x-value. I added a picture to help explain this one!
6 sets of birds were in a brown crate and 2 sets of birds were in a green crate? How many birds altogether were in those crates.
The possible digits could be 0, 1, 2, 3, or 4 as they would cause the entire number to round down instead of up.