Answer:
659
Step-by-step explanation:
ones place is 9
tens + hundreds places = 11
two consecutive numbers that equal 11 are 5 and 6
hundreds is 1 + tens place so it is 6
and the tens is 5
It would be C. Because It has four straight lines, like a polygon.
I believe the answer is 88 because the 120 will create a straight angle which is 180. Then you do 180-120=60. This is the measure I the left angle. Now your answer will be 88
The sign is negative because a negative times a positive is a negative. Anytime the signs are different the answer is always negative.
Answer: There are 140 adults and 40 children.
Step-by-step explanation:
Let 2x = Number of children
7x = Number of adults.
As there are 100 more adults than children.
That means, 

Number of children = 2 (20)=40
Number of adults = 7(20) = 140
Hence, there are 140 adults and 40 children.