Answer:
3
Step-by-step explanation:
A direct variation is of the form
y = kx
We know x and y so we can find k
81 = k *27
Divide each side by 27
81/27 = 27k/27
3=k
The constant of variation is 3
Answer:
Step-by-step explanation:

Answer: It is 7
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Answer:
12x-3x
= 9x
Step-by-step explanation:
Hope it is helpful....