Simplify 4√6/√30 by rationalizing the denominator. Show your work. I don't know where to even start. How do I solve this? Please explain it completely.

What are the domain and range of the function? f(x) = -4 (sqrt)x

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

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