Answer:
$14
Step-by-step explanation:
35/20 = 1.75
8*1.75 = 14
Answer:
-1.5
Step-by-step explanation:
The slope of a line is given by the formula:

Let's let (4,5) be x₁ and y₁ and let's let (8,-1) be x₂ and y₂. So:

Subtract:

Reduce:

So, our slope is -3/2 or -1.5.
And we're done!
3x + y = 10 >>>>>>
6x + 2y = 20
-4x - 2y = 2
2x = 22
X = 11. Y = -23.
Can you explain a little more ?