Answer:
20
Step-by-step explanation:
If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20
I hope this helps :0)
I think the domain is -1 and the range is 2. You may want to double check though.
Answer: Kg/m³
Step-by-step explanation: Mass/ Volume
The answer is A or it should be