First you need to solve the stuff in the parenthesis.
8 x 10^4
10^4 = 10,000
8 x 10,000 = 80,000
80,000 x 5 = 400,000
The answer is 400,000
Add 1/4a to both sides
-4= 8/4a-3
Simplify
-4=2a-3
Add 3 to both sides
-1=2a
Divide both sides by 2
-1/2=a
Final answer: a=-1/2
.05*2000=100 Non-Sporting
.06*2000=120 Herding
.24*2000=480 Sporting
.21*2000=420 Working
.16*2000=320 Hound
.16*2000=320 Terrier
.12*2000=240 Tay
Hope I didn't mess up for your sake
We know
Sum of two interior angles=exterior angle
Hope it helps
