Answer:
slope = - 3
Step-by-step explanation:
Calculate the slope m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (0, - 3) ← 2 points on the line
m = = = - 3
slope=–5/4 , m is a slope
cost of 1 inch of wire= 22/66= 0.33
cost of 18 inch of wire= 0.33 x 18= 6
$1= 100 cents
$6 in cents= 6 x 100= 600 cents
I think that the answer is 2.5 , the second item .
= 
= - 3
