In a class of 30 drama students 18 are girls.
a. write the proportion of girls as a fraction
b. write the proportion of boys as a fraction
c. write the ratio of girls to boys in its simplest form
you get loads of points the first one who answers this!

This size running track is usually called a 400 meter track. however if a person ran as close to the inside as possible on the track they would run less than 400 meters in one lap. how far away from the inside border would someone have to run to make one lap equal exactly 400 meters