B
Step-by-step explanation:
The starting point is 4 and the slope is 2/1 (up 2 to the right 1)
step-by-step explanation:
36 girls
the 48 boys is 4 parts of the ratio
divide 48 by 4 to obtain one part of the ratio
= 12 ← 1 part of the ratio
3 parts = 3 × 12 = 36 ← number of girls