hi, im having trouble with my extra practice questions, hope you can help. Make sure you have correct units of measure, therefore statements, equal signs lined up, and clarity and organization of solution.

5) Mr. Liska is doing a survey of Mulock to see how many students want him to start up the Coin Club again this year. Given the data below, how many grade 10 students should he ask if he only has time to survey 60 people and he is going to do a stratified sample. O Grade Number of Students 9 380 10 325 11 215 12 280