Can someone help me please?

Asap 25 pts + brainliest to right/best answer

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

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)