here is a graph representing a function of the form f(x) = a * b^x find the values of a and b. Show your reasoning

(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 .

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.