Question

Lana ate at her favorite restaurant last weekend. She decided to leave a 20% tip for her server. Before tip, her bill came to $34.
How much did the meal cost in total, including tip?

Answer 1

If u need to get 20% of $34 u can find 10% which is 3.40 which means to get 20% you need to double it to 6.80 and that’s how much the tip was therefore if she had her total bill of $34+$6.80 tip that means the total is $40.80

Answer 2

Another way to do this would be doing 34*20/100 which will give you 6.8.
So now we answer the question about the total cost by doing $34+$6.8 =$40.8