ERGENT HURRY PLEASE HELP

Answer:
There are 2500 girls
Step-by-step explanation:
So we have to show their ratio which is 4 : 5 = boys : girls
So then we sum them up to divide. 4 + 5 = 9
Since girls are 5 It'll be [tex]\frac{5}{9}*4500[/tex]
So let's multiply: [tex]\frac{22500}{9}[/tex]
girls: 2500