An old bone contains 80% of its original carbon-14. Use the half-life model to find the age of the bone. Find an equation equivalent

(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 .

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

State one method by which you can recognize a perfect square trinomial.