Answer:
The lines for each pair of equations are perpendicular, because the slopes for both of these have negative reciprocals.
Step-by-step explanation:
-5x+10y=5
x-2y=-1
2y=x-(-1)
2y=x+1
y=1/2x+1/2
Answer:
$6
Step-by-step explanation:
50 x 1.08 = 54
60-54=6
Answer:
The answer is - 3. Since the number got bigger than what it was before it would be negative