Find the rule 3, 4, 6, n, 9, 12, 18, 27

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets, x, and the number of student tickets, y. find the solution and explain what it means. i'll you if you me

How to do this , and can some one explain