Answer: I think the correct answer is D.
Answer: 
Step-by-step explanation:
Move all terms to one side.

Use the Quadratic Formula.
, 
THat would be 5/6 * 4 = 20/6 = 3 1/3 hours jogging.
Answer:
12 units!
Step-by-step explanation:
Yes it is proportional!
we know this because with every week that passes, he plays another 2.5 hours if video games. hope this helps:)