Use math-way it will give u all the answers u need
the total no of population=1650
13:17 first add the two numbers 13+17=30
then 13/30×y =715 , i make 13 at the numerator because it's males ratio
after that 30/13×13/30y =715 ×30/13
y =715×30/13
y =1650
after u find the total no it's simple to find the no of females
17/30×1650=935
Answer is 5.85 see picture
Answer:1.8701
Step-by-step explanation:
Area (A) of trapezium as marked is =

A=

A=18
Now for Volume we have to multiply by length because area is same across the length.
volume(v)=
Volume(v)=
Volume(v)=432 
Volume(v)=1.8701 gallon