There is 2 figure here, a triangle and a parallelogram.
Area of parallelogram=base * height
A=9 * 5
A=45m²
Area of triangle=

(base * height)
A=

(9*8)
A=

72
A=36m²
36+45=81m²
The area of this figure is 81m²
It's a ball, so a sphere.
V=4/3πr^3(That's the sphere formula)
V=128.
128=4/3πr^3
3.13 is your approximate radius.
r= (3* 128/4π)
There were 22 child tickets sold and 44 adult tickets sold. To check the math: multiply 5.60 times 22 and get 123.2 dollars, and then 9.10 times 44 and get 400.4 for the adult. Add 123.2 and 400.4 to get 523.60.