Find the are of the polygon in square units

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

(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 .

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9