Answer: There are 20 ways and 1680 ways respectively.
Step-by-step explanation:
Since we have given that
Total number of blocks = 6
Number of red blocks = 3
Number of green blocks = 3
So, Number of patterns she can make by placing them all in a line is given by

If there are 3 white blocks
so, total number of white blocks becomes 9
So, Number of total pattern she can make by placing all nine blocks in a line is given by

Hence, there are 20 ways and 1680 ways respectively.
Answer:
6.19
Step-by-step explanation:
I hope this helps you
Answer:
210 miles in 1 hour
Step-by-step explanation:
steps are in picture
Answer:
area of the merry go round =πr²
=22/7×3²
=28.28
answer is option D