Answer:
It does not show variation
Step-by-step explanation:
Given

Required
Determine if there's direct variation between x and y
The general form of direct variation is:

Make y the subject of formula in the given parameters;


Compare
to 
<em>Since they are not of the same form, then the given equation do not show direct variation</em>
2n-4= n-10
-n. -n
n-4=-10
+4. +4
n=-6
Final answer: -6
Answer:
3. Jonathon does 2 push-ups for every 15 crunches.
Step-by-step explanation:
Hope it helps