Which pair of ratios from a proportion a.4/5 and 16/24 b.9/15 and 3/4 c.5/8 and 30/48 d.9/10 and 40/45

C because 6 x 5 is 30 and 6 x 8 is 48

So

6(5/8) = 30/48

to find the unit price, we must figure out the cost of one item (in this case one dish towel).   to do this, we divide the total price ($7.92) by the number of items bought (for this problem it is 8, because there are eight dish towels in one pack).  

$7.92/8 = $0.99

therefore, the unit price, or the price of one dish towel, is $0.99.

hope this !