Please help i need it quick

Please explain how you got your answer too because im confused

Brent wants to know what is 5 x 1/2

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out