The present age of father is double of the age of his son. if the difference of their ages is 25 years. find their age.

The age of the father is 50. The age of the son is 25.

Step-by-step explanation:

The difference is always the son's age, and only one number works for 25, and that's 50.

x = 25

215.92 dollars is the answer

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