What are the solutions to the following system of equations? select the correct answer below.
y = x2 − 4x + 8
4x + y = 12
(2, 20) and (−2, 4)
(2, 4) and (−2, 20)
(−2, 2) and (4, 20)
(20, −2) and (4, 2)

Show me how you find the value of each variable and determine what the value of each variable is you i appreciate it : )

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

Cone a has a surface area of 384 ft2 and cone b has a surface area of 96 ft? . what is the ratio of their volume?