Here are the prices for cheese pizza at a certain pizzeria: You had a coupon that made the price of a large pizza $13.00. For what percent off was the coupon?

Do not include the percent sign (%) in your answer. ​

Answer question above and explain each step : )

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list