there are 39 students in a class 22 offer maths,14 offer physics, and 16 offer biology if 5 offer both biology and math 7 offer at least one of the subject where every student offer at least one of the subjects .find​

The highest common factor of 132 and 220

The triangles are similar. what is the value of x? show your work.

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