Using the formula sum of interior angles {180(n-2)}
180(15-2)=180
giving you a total of 2340 Degrees
y = mx + b
Subtract mx from both sides
y - mx = b
b = y - mx
<span>100% of $X plus 100% of $Y equals $1000
4% of $X plus 6% of $Y equals $58
To solve that clear the second equation of decimals by
multiplying through by 100:
Solve that by either substitution or by elimination:
X = $100 at 4% and $900 at 6%</span>
