In a secendary school there are 40 classes altogether. 8 out of classes are year 7 classes. what fraction in the school are in year 7? give your answer in its simplest form

Which equation could represent the relationship shown in the scatter plot? y=−3x−2 y=−3/4x+10 y=−2/3x+1 y=9x−12 scatter plot with x axis labeled variable x and y axis labeled variable y. points go from upper left to lower right.