can i get help? and please no solution from the manual solution

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7.5 7.6 When you go to a movie theater, you buy a prenumbered ticket from the cashier. This ticket is handed to another person at the entrance to the movie. What kinds of irregulari- ties is the theater trying to prevent? What controls is it using to prevent these irregulari- ties? What remaining risks or exposures can you identify? Some restaurants use customer checks with prenumbered sequence codes. Each food server uses these checks to write up customer orders. Food servers are told not to de stroy any customer checks; if a mistake is made, they are to void that check and write a new one. All voided checks are to be turned in to the manager daily. How does this policy help the restaurant control cash receipts