Answer:

Step-by-step explanation:

Most graphing calculators will do weighted averages pretty easily. It is mostly a matter of data entry.
mx = -2
my = 10
(x, y) = (mx, my)/10 = (-0.2, 1)
The answer is 210 just multiply 420 by 7 cause theres 7 days is a week you get 2,940 minus from 3,150
#6 is c
Then on the sheet with 6 questions on it it's
1. a
2. b
3. c
4. a
5. b
6. b
Answer:
No, this is not a function as the curve is inappropriately drawn and the presence of variables is absent.