I am awarding branliest so pls

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.