3a + a - 15 = 225 . your substituting b(a-15) into the first equation. <span />
Answer:
Well, looking at the chart, there is a cluster of 3 dots at 10 A.M and 5 at 6 P.M and over. I hope that helped :)
Step-by-step explanation:
A circle is 360 degrees so 360 divided by 20=18 so 20 degrees is one 18th of a circle
1/2bh
1/2b4 = 18
b4= 36
b= 9 yards