10 socks are in a sock drawer, four of them are white and 6 of them are black, what is the probability of reaching in and picking out a white sock

4 white socks out of 10 total socks = 4/10  = 2/5

2/5  = 0.4

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4