First, we take into account that 24 hours are in one day. We then make the equation 6/24, which tells us that she can make 8 ornaments in 24 hours. That's not the answer we need though.
We will divide 2 by 6 = 0.33
We can take that and multiply it by 15 hours to get <u>5 </u><u>ornaments total</u>.
I'm sorry that I'm not in calculus, but hopefully I can help. Personally, I would choose: D.) x; in the second equation ; because it has easier numbers to figure out, you'll get it eventually...