The measure of angle A in angles ABC is 88 degrees. The measure of angle b is 60% of the measure of angle A. What is the measure of angle C?

First of all we need to find angle B which is 60% of 88.

To find that we can just divide 88 by 100 and multiply it by 60 or divide by 10 and multiply by 6, or divide by 5 and multiply by 3, etc ...

88 : 100 = 0.88

0.88*60 = 52.8

88 : 10 = 8.8

8.8 * 6 = 52.8

88 : 5 = 17.6

17,6*3 = 52.8

Ok, so angle a = 88, angle b is 52.8 and c is unknown.

To find angle c we just need to subtract angle a + angle b from 180 because every triangle has a sum of the three angles of 180.

180 = a + b + c

a = 88 b=52.8 c=x (unknown)

180 = 88 + 52.8 + x

180 = 140.8 + x

To shift 140.8 to the other side of the equation, we can just subtract 140.8 from both sides of the equation:

180 - 140.8 = 140.8 - 140.8 + x

39.2 = x

x = 39.2

c=x

c = 39.2°

Thats your awnser : angle c has an angle of 39.2 degrees!

I hope you understood my brief explanation