Can anyone pls help me in this MATH question pls

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

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