According to a survey, approximately $25\mathrm{.}5\%$ of employers have eliminated perks or plan to do so in the next year. Suppose $30$ employers are randomly selected.

What is the probability that exactly $10$ of the employers have eliminated or plan to eliminate perks?

Note: Do not round intermediate calculations. Round your final answer to $4$ decimal places.

What is the probability that at least $10$ employers, but no more than $20$ employers, have eliminated or plan to eliminate perks?

Note: Do not round intermediate calculations. Round your final answer to $4$ decimal places.

What is the probability that at most eight employers have eliminated or plan to eliminate perks?