Hello!
To find the lateral area you use the equation

You put in the values you know and you get 829.4
To find the surface area you use the equation

Put in the values you know and you get 1209.5
The answer is A
Hope this helps!
Answer:(2,3)
Step-by-step explanation:
y2-y1/x2-x1
6.40x+9.90(154-x)=1230.90
Solve for x
X=84 for child
154-84=70 for adults