A= m - n solve for n
a) n= a plus m
b) n= m-a
c) n=a-m
d) n= -m - a

Anyone know? will mark brainliest if correct

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?

If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9