I mean what Eve picks is dependent on what Dina picks. But what Dina picks is independent. :)
41*2=82 because if you do 82 divided by 2 it is 14
If 5 pens cost 95 cents, that means that each pen cost 95/5 = 19 cents each. So a dozen will cost:
dozenCost = 12*19 = 228 cents
True, each number is getting doubled, both sides are proportionally staying the same.