Jackie and Marc went to dinner. The cost of their meal, not including tax and tip, was $45.00. Jackie had a coupon that reduced the cost of the meal to $36.00. What would the percent of tax be?

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?