An uncovered human skeleton is discovered to have only 1/15 of the original amount of carbon 14 for a human. how long has the person been dead?

(recall that the half-life of carbon 14 is 5568 year. round to the nearest year)

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?