Answer:
Step-by-step explanation:

Answer:8349y
Step-by-step explanation:
Ratio:
Red : Total
2 : 5
(x2) (x2)
4 : 10
Green : Total
3 : 10
Total of red and green marbles = 4 + 3 = 7
Blue marbles = 10 - 7 = 3
10 parts = 40 marbles
1 part = 40 ÷ 10 = 4
3 parts = 4 x 3 = 12
Answer: There are 12 blue marbles.
<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
900 = </span><span>(Number of Sides -2) • 180 degrees
900 / 180 = </span><span>Number of Sides -2
5 = </span><span>Number of Sides -2
</span><span>Number of Sides = 7
Polygon is a heptagon.
http://www.1728.org/polygon.htm
</span>
Answer:
true
Step-by-step explanation:
bc my brain is right ( BTW i got my dad to check :>)