In a school, there is a boy to girl ratio of 4:6 If there are 620 students in the school how many boys are there?
There are 248 boys in the school.
What is the value of x when 21x-6=9x+30? A) x=2 B) x=4/5 C) x= -1 D) x=3
Find the area of a rectangle for which side A is represented by 5f+3 and side B is represented by 3g+2.