Question

x/2 = 5
x=10
How can you tell if lines are parallel, perpendicular, or neither?

Answer 1

y=mx+b, M is slope
x/2=5, slope is 1/2
x = 10, slope is 1
If the lines are parallel, the slope will be the exact same. If they're perpendicular, then the slopes will be opposite reciprocals. These are neither.
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Answer 2

x/3=3
x=9
How can you tell if lines are parallel, perpendicular, or neither?

Answer 3

These are neither