3 answers
(click or scroll down)
The total ratio of boys to girls is 2+4=<<2+4=6>>6
If we divide the total number of students (850) by the total ratio (6), we get 850/6=<<850/6=141.66666666666666>>141.67.
Rounding to the nearest whole number, we would expect there to be approximately 142 girls in the 7th grade at GACA.