If f(x) = \x1 + 9 and g(x) = –6, which describes the value of (f + g)(x)?

The sum of two numbers is 12 and their difference is 18 what are the two numbers

(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 .

Is the figure congruent? yes or no?