Answer:
The answer letter D
Step-by-step explanation:
D) 15
We know the formula for direct variation is
y=kx
Substituting y=5 and x=4 we can calculate k
5=k4
Divide each side by 4
5/4 =k
Now y= 5/4 x
If x =12
y =5/4*12
y = 15
2
Hope this helps.
to get x you need to divide
210/42= 5
x=5