Math ..
posted by Sara .
All eighth grade students can choose to take one of the following elective courses: art, chorus, band, or woodworking. There are 2o more students enrolled in chorus than art. Band has 3/4 the enrollment as chorus. woodworking has 5 fewer students than band.
Which expressions represent this situation ?

c = a+20
b = 3/4 c
w = b5