The measure of an angle is 7y. Which expression should be used to determine its supplement?
A. 180 -7y
B. 180 +7y
C. 90 -7y
D. 90+7y
1 answer
A. 180 -7y
A. 180 -7y
B. 180 +7y
C. 90 -7y
D. 90+7y
1 answer