(9x+8)-2(x-5) what expression could be equal to that

What is the product of the radical expression. (7-2square root) (8+2 square root)

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25

(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 .