Answer:
2n, 5n, n
2m, 6m
4n3
Letters are grouped together, except for when they have exponents. Numbers with the same letter and exponent can be grouped together though (ex. 4n3 and 9n3) Hope this helps!
Answer:
the answer is 4x 
Step-by-step explanation:
I hope this helps
have a nice day/night
Mark brainiest please
Angle between 16 and 18 = 90 + 55 = 145°