This math question is hard for me.

Question

A bag of chestnuts costs $5.85 including tax. There are 4 dozen chestnuts in each bag. What would be the cost of 5 dozen chestnuts

Answer 1

5/4 = 1.25

1.25(5.85) = $7.31 for 5 pounds of chestnuts

x/5 = 5.85/4

x = 5(5.85)/4 = 29.25/4 = $7.31 rounded off to nearest cent