Answer:
The expression seems to be bugged.
Step-by-step explanation:
Based on how it says null, there is probably something wrong with the program you are using. You should contact your supervisor or teacher or whatever, it might have bugged.
Answer:
The value of k is 0.8
Step-by-step explanation:
we have

This linear equation represent a direct variation
we have
y=1.2, x=1.5
substitute in the equation

solve for k
divided by 1.5 both sides

The linear equation is

35/35-14/35=21/35=0.6=60%
Answer:
C because product means to multiply