Answer:
A. The set of happy people.
B. The set of good teachers.
C. The set of enjoyable subjects.
D. The set of Philippine Presidents
Answer:

Step-by-step explanation:
I used an online Fraction calculator to check my answer and I got 4/15 both times so you can trust this answer my friend.
Hope this helped you out.
Answer:
Step-by-step explanation:
Answer:
600
Step-by-step explanation:
anything times 1 is itself
1). 2x-1>0
2x>1
x>½
2) 21-3y<0
-3y<-21
y>7
3) 5-3c>80
-3c>75
c<-25