You need to learn no to copy it kiddo
4y=16
y is the variable. If you were to solve the equation you would write the equation as 4(4)=16.
Its 872 when the integer goes down
For part A add up all your students then add up all your students that like bike riding and skating (80+90) divide that by the total number of students who took the survey
For Part be put 20+40 over the toatl number of student then simplify
