Which pair of complex numbers has a real-number product?
(1 + 31) (6)
(1 + 31)(2 – 31)
(1 + 31) (1 – 31)
(1 + 3)(31)

Select all the correct answers. natalie buys a new car. in the first month, the odometer on the car records 800 miles. from past experience, she expects to drive 900 miles per monthselect all the functions that can be used to find the number of miles, f(n), recorded on the odometer after n months. of(n) = 800n + 100f(n) = 9001 - 100f(n) = 900n + 800(1) = 800; }(n) = f(n - 1) + 900, for n > 2f(1) = 800; 1(n) = f(n − 1) + 100, for n > 2(1) = 900; }(n) = f(n - 1) + 800, for n > 2

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Solve the given system of equations. 2y= -x+9 , 3x-6= -15