What is the solution to this system of linear equations x+y=4 and x-y=6

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

Is appreciated! graph the functions and approximate an x-value in which the exponential function surpasses the polynomial function. f(x) = 4^xg(x) = 4x^2options: x = -1x = 0x = 1x = 2

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0