Hello!
To find the volume of a cone you do

r is radius
h is height
Put in the values we know and 3.14 for pi

Multiply and you get 619.10
The answer is 619.10 cubic cm
The formula is 4/3 times pi times radius cubed. The radius is 9. 4/3 is 1.33. 3.14 times 9 cubed is 81 times 3.14. That is 254.34. 1.33 times 254.34 is 338.2722. That rounds to 338.
X is 35 degrees and Y is 70 degrees
If you’re looking for an equation for both of these, Bob’s rentals would be 20+2m and Bella’s would just be 6m. If you are trying to figure out how many movies it would take to be the same, set up the equation 20+2m=6m and solve. Im not exactly sure what you are asking for but I hope this helps.
I can help you understand this, however there is nothing but 'M'