There are 6! possible permutations of the blue books, 2 possible permutations of the red books, 4! possible permutations of the green books and 3! possible permutations of the three color groups. therefore the total number of ways of arranging the books is given by:
Step-by-step explanation:
Angle 3 = Angle 6 (Z-angles)
Therefore Angle 6 = Angle 3 = 54°.
Answer:
less
Step-by-step explanation:
We assume price of a shirt is $100.
Initially price is <u>increased</u> by 10%: 100+10=110
Then it is <u>reduced</u> by 10%: 110-11=99
Now price of a shirt is $99.
Answer is price of a shirt is less than it was at the start.