The rate is $12 an hour, this is your slope plus $8 and your y- intercept. So by the slope intercept formula:
where m is your slope and b the y - intercept we have:
The area of a circle with radius is
You radius is 5, so your area is
1. If you are trying to find x, then you simply set each equation equal to each other, because they are both equal to y.
x + 6 = -2x - 3
x = -2x - 9
3x = -9
x = -3
2. Now you have to rearrange each equation to be qual to y
equation 1:
5x - y = -5
5x = -5 + y
5x + 5 = y
equation 2:
3x - 6y = 24
3x = 24 + 6y
3x - 24 = 6y
x/2 - 4 = y
then set them equal
x/2 - 4 = 5x + 5
x/2 = 5x + 9
x/2 = 10x/2 + 9
-9x/2 = 9
-9x = 18
x = -2