The weekly pay that Melissa receives varies directly with the number of hours she works. If she works 34 hours she makes 274.04. How much money would she make if she works 21 hours?

Step-by-step explanation:

274.04/34=8.06(21)=169.26

The answer is B.   Because there are 8 ribbons in all. 1 ribbon is black. so the equation would be 1/8. Assuming you don't draw the black ribbon on the first try, then you would try again. The second time you draw a ribbon you don't put the ribbon you drew back in. That means there are only 7 ribbons the second time. The 1 black ribbon is still in the bag than the equation would be 1/7. Then you add the two together. So it would be 1/8 + 1/7 = 1/15. Remember to only add the bottom numbers. not the top ones unless they are different colors or objects.