It takes elsa 10 minutes to mix up a batch of muffins the muffins bake for 20 minutes and then cool for one hour then elsa spend 15 minutes packaging and labeling the muffins how much time in all does elsa spend making a batch of muffins ready to sell

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