There are 1 1/2 hip hop classes for 1 ballet class.
The answer is 32.07. Rounded to the nearest tenth is 32.1
Answer: $37077.12
Step-by-step explanation:
Please see the attachment below
Answer:
2520 patterns
Step-by-step explanation:
In 'n' 10! ways, books can be arranged. But, there are also 5! permutation of blue books 'n1', 2! permutation of identical green books 'n2', and 3! permutation identical black books 'n3'.
Therefore, for non identical arrangements:

= 2520
Therefore, the books can be arranged on a shelf in 2520 patterns