There are 11 sixth grade students and 7 eighth grade students in the art club. The number of seventh grade students in the art club is half the combined number of sixth and eighth grade students in the club. What is the ratio of seventh grade students in the club to the total number of students in the art club, written as a fraction in lowest terms?

Perry angelo is planning to open a restaurant. he has the resources to produce and sell either hamburgers or pizzas. so he does some research and finds that the new location has a good demand for pizza. he hires cooks, wait staff, and an accounts person for his new pizzeria. he also arranges for materials such as pizza ingredients and pizza boxes. determine three factors affecting perry's cost of making pizza. write down the name of the factors and their instances in this scenario.