Answer: I would do a.
Explanation: Then both customers would be happy. I'm pretty sure that is how this works.
What book is this from or...
Well, from what I know, I believe that it does not. I don't see how it's possible, if y = 7, how does this relate to (0,1), I don't see how it's would be possible. My guess, it would impossible.
2 kg = 2000g
15 minutes + 25min (4) = 115 minutes
Answer: 1 hour and 55 min
