The price of Mr Johnson's lunch bill before the 15% tip paid is $26.
What is the price before tip?
Percentage can be described as a fraction of an amount expressed as a number out of hundred.
In order to determine the price before the tip, divide the lunch bill by the percentage tip.
Price before the tip = lunch bill / ( 1 + percentage tip)
29.90 / 1/15 = $26
To learn more about percentages, please check: https://brainly.com/question/25764815
