Answer:
there is an 8% saving in the 5 filters kit.
Explanation:
Firxt we calcualte the cost of the filter individually
10.45 x 2 = 20.90
12.05 x 2 = 24.10
17.50 x 1 = 17.5
total 62.5
Now, we compare with the kit to know the savings:
savings: 62.5 - 57.5 = 5 dollars
Last, we express the savings as percentage:
saving as percentage: 5 / 62.5 = 0.08 = 8%