Which equation illustrates the commutative property of addition? O A. a+b= a + b
B. m + 2n = 2n + m
O C. 3 (x - 1) = 3x - 3
O D. X (3 – y) = x (y - 3)

Find the multiplicative inverse of 8-12i

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

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15