Find the values of a, b, and c.

a = 12

b = 20

c = 5

Step-by-step explanation:

1) First you need to know the rule that angles on a straight line add up to 180° because it is like doing a line straight through the middle of a circle (360°) so it is just half of 360°

2) Knowing this you know can form the question of 100°+16c° = 180. Do the opposite of +100° so instead -100°. so that would be 180-100 = 80°.

3)16c° = 80 now do the opposite of 16 x c and do 80/16 = c=5

4) 5b + 16c = 180° or because we now know that c = 5 it is 5b + 16(5) = 180°

180 - 16(5) = 100°      5b=100   100/5=20

5) 5(20) + (5a+20) = 180    180-5(20) = 80    5a+20=80    80-20=60    60/5=12

i think the answer is seven, for if i'm being useless °ω°

step-by-step explanation:

step-by-step explanation: