Expanded form:
1 × 100,000,000
+ 5 × 10,000,000
+ 4 × 1,000,000
+ 7 × 100,000
+ 9 × 10,000
+ 8 × 1,000
+ 1 × 100
+ 0 × 10
+ 5 × 1
I hope it helps :)
Answer:
60°
Step-by-step explanation:
Because that is an equiangular triangle all the angles are the same. Which is 60°
2: 17.5 years. Work; 12 months in one year, 210 months divided by 12 months= 17.5 years.