Step-by-step explanation:
Now you will figure out how many of those 45 students were boys by subtracting 12 from 45. There are 33 boys and 12 girls who did try out for track. Now to figure out the students who didn't try out..120 boys minus the 33 who did try out for track is 87 and the 80 girls minus the 12 who did try out is 68
I hope this helps :)
