60 votes are required to change a village parking law. if 9/20 of the 100 people in a village vote to change the law, are there enough votes to change the law?

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

Can someone me and do the problem plz so i can understand it more better