Ryan has a model plane. The length of the model is 30cm. The length of the real plane is 72 m. Find the scale used to make the model. Give your answer in the form 1 : n

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