Can someone pls help me pls

Which number produces a rationale number when multiplied by 1/5

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

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x