40 students are going on a field trip to the aquarium. every student needs to be in a group, and all groups must have the same number of students. if there is 1 group, there will be students in the group. if there are groups, there will be 20 students in each group. if there are 4 groups, there will be students in each group.

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in