D because your making the shape smaller 2 times
Answer:
There are 180 degrees in a triangle so it is 80 degrees
Check the picture below.
now, since we know what "f" is, let us use the CNT triangle with the small COR one.

Answer:
A is 10 dollar cheaper than B
Step-by-step explanation:
A : 40 dollars plus 45*2=90
90+40= 130 dollars
B:100 dollars 45*1=45
100+45= 145 dollars
So in total, there are 7 marbles, (3 black + 4 red = 7 total marbles) and we want to find out how much black marbles are able to come out. So it would be 3/7. :)
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