Salma paid 15.84 for a 7.8- kg bag of dog food. A few weeks later, she paid 16.58for a7.94 - kg bag at a different store. Find the unit price for each bag. Then state which bag is the better buy based on the unit price.Round youranswer to the nearest cents.

For this case we will first look for the total cost of the purse.
 We then have the following rule of three:
 14.95 $ > 100%
 x > 105%
 Clearing x we have:
 x = (105/100) * (14.95)
 x = 15.6975 $
 The amount needed to buy the purse is:
 15.6975 - 10 = 5.6975 $
 
 holley needs 5.6975 $ to buy the purse