Can you please include an attachment or a set of ordered pairs? I'd love to help but I don't have any information.
Answer:
(a).5/12
(b).10 players
Step-by-step explanation:
a.
⅓+¼=7/12
Remaining=5/12
b.5/12of 24 =10 players
Answer:

Step-by-step explanation:
For example, 
300 is the initial amount of miligrams, .5 represents a 50% decay of that substance.