1st one: linear
2nd one: linear
3rd one: nonlinear
Okay, let's add the two x values.
10x + 75 = 5x = 110
15x + 75 = 110
Now let's minus 75 from each side.
15x = 35
Now let's divide each side by 15.
x = 2.333333333
B. The mean; in a normal distribution, the mean is always greater than the median