Quadrilateral OPQR is inscribed in circle N, as shown below. What is the measure of ∠PQR? a 41 b 67 c 113 d 139

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?