Calculate the total with 6% sales tax and 18% tip for a dinner that costs $27.58

Do $27.58 x. 06 (for the sales tax) which equals in total $1.65.

Then do $27.58 x. 18 (for the tip) which equals $4.96 in total.

Later add the tip and tax together which you get $6.61, add that to $27.58 and you'll get $34.19 total adding the tax and tip