Answer:
The correct answer is B
Step-by-step explanation:
Kinda complicated to explain, if you need me to then comment and I'll do it
Answer:
Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays.
Answer:

Step-by-step explanation:


cross multiply
12x=180
divide both sides by 12
x=15
if their is 10 girls, then you need
5 more to keep the ratio.