Answer :
To find x% of a number y, divide x by 100, then multiply the answer by y
Since the cost of the dishes is $40.87
Since the sales tax is 6% of it, then
Divide 6 by 100, then multiply by 40.87
[tex]\begin{gathered} ST=\frac{6}{100}\times40.87 \\ ST=2.4522 \end{gathered}[/tex]The sales tax is $2.4522