Answer:
es la f
Step-by-step explanation:
Parallel lines are straight lines that don't ever touch. Think of a railroad track.
Perpendicular lines are lines that meet and make a 90 degree angle
n = 7
n = -3
4n+6 = n²-15
4n = n² - 21
n² - 4n - 21 = 0
(n-7)(n+3) = 0
here try this right here
144.9 <= x <= 145.5
145.2 + 3 = 145.5
145.2 - 3 = 144.9
