Solution: The number of ways we can arrange 3 blue marbles if a set of 5 marbles is selected is:



Therefore, there are 10 ways we could arrange 3 blue marbles.
Answer:
y = 12
Step-by-step explanation:
60° = 5y°
y = 60°/5
y = 12
Answer:
<u><em>D. </em></u>
Step-by-step explanation:
This is because you find the unit rate for each typist.