Can someone please help urgently this is an emergency and I need explanation with it to help me understand to how you worked it out. Hopefully its not alot of work. Please. We are meant to find the volume.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126