Answer:
yes
Step-by-step explanation:
if m and n are parallel then 15x+10 +6x2 must be equal to 180
let's check
15x + 10 + 6x + 2➡21x + 12 =180 ➡21x=180 -12 ➡21x = 168 ➡x= 8
your answer is correct
