15/-23 = -0.65217391
hope this helps
Bill's age = x
Eya's age = 3x - 5
Eya is 28
28 = 3x - 5
28 (+5) = 3x -5 (+5)
33 = 3x
33/3 = 3x/3
x = 11
Bill = x
x = 11
Bill is 11 years old
hope this helps
Let's pick on two points. Let's say we pick the first two points which are (1,4) and (0,5,3.5)
The slope formula tells us that
m = (y2-y1)/(x2-x1)
m = (3.5-4)/(0.5-1)
m = (-0.5)/(-0.5)
m = 1
So the slope is 1. We can pick any other two points, run them through the slope formula, and we'll get the same result.
So that's why the answer is choice C) 1
An icy body that releases gas or dust with a tail thats always pointed away from the sun