Answer:
Yes, they are
Step-by-step explanation:
y = -9x
Here y∝ x
Where -9 is constant of proportionality
If "y" increases by factor of 2, then "x" will also increases by factor of 2. Hence, y and x are " directly proportional" to each other.
5 = 1/4c
The equation would be .05x+50=100 Then you would solve for x
C
Plug 1, 2, and 3 into n and you'll get 15, 13, and 11 respectively