How would you find the volume of the figure represented by the given net?

Write the following as a base and exponent

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

Solve for x where 0 equation: cot^2x+2cotx+1=0