Answer: 14 tickets weren't sold.
Step-by-step explanation:
14 times 15 = 210
So there are 210 seats in the cinema.
The total is $1274 so you would divide
[tex]6.50\sqrt{1274 \\[/tex] which equals 196
Your final step is to subtract
210 (the total seats) minis 196 (seats sold) equals 14 seats not sold
HOPE THIS HELPED!!!!
