An angle's measurement is 5 degrees less than 3 times the measure of its supplement. find the measure of the angle and its supplement.

A supplement is 2 angles that add up to 180º. We can set this problem in an Algebraic Equation (x being the smaller angle)
x+(3x-5)=180
4x-5=180
4x=185
x=46.5
Measure of smaller angle: 46.5º Measure of supplement: 134.5º

8,400-6,400=xx/6,400anyways the percent increase is 31.25% or 0.3125 you can round if you can