Question

Someone helppp please??

Answer 1

5.52

Hope this helped!

Explanation:

Let c = cost of a spoon

3c = cost of knife

9c + 12(3c) = 82.80

9c + 36c = 82.80

c = 82.80/45

= 1.84

cost of 1 knife = 1.84 x 3

= $5.52 check

9*1.84 + 12*5.52 = 82.80