polygon: (n-2) × 180
n: nonagon
octagon has 8 sides
Answer:
B.)8ft
Step-by-step explanation:
Set up a proportional to the roof slope:
2/5 = x/20
Cross multiply:
40/5 = 5x/5
x=8ft
300
10% of 250 is 25. so 20% is 50
250 + 50 = 300
$308.50
3702 ÷ 12 = 308.5 is her monthly payment
