What is the measure of an angle if it is 720 less than five times it own supplement

45

step-by-step explanation:

a = 5(90-a) - 180 [180 less than 5 times its complement]

solve for a:

a = 450 - 5a - 180

6a = 270

a = 45

ans: 45 degrees

check: 45 ? = 5*45 - 180 = 225 - 180 = 45

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.