3/4 of the bat blood was used = 18/24 most Ethel
2/3 of the knotgrass was used= 16/24 more Locasta
1/2 of the moonstone was used=12/24 less Circe
3/8 of the unicorn hair was used=9/24 least Glinda
Circe used the moonstone
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!
Given the center
and the radius
of a circle, its equation is

In your case, the center is (-4,0), and the radius is 2. Plug these values into the generic formula and you'll get the equation.
Answer:
y = 50 + 35x we dont know how many hours they worked
Step-by-step explanation: