A restaurant customer left $0.90 as a tip. The tax was 5% and the tip was 10% of the after tax cost. Which information is not needed to compute the bill after tax and tip? What was the total bill?

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.