Answer:
d
Step-by-step explanation:
d=(x, y) =(8,-4) so 4th quadrant
X + 9 = 16
explanation : he bought nine more coins which made it 16. to find out how many coins he sold you would solve the equation then divide by 2.
Answer:
1.309 I just I don't know
24 pages. 12 is half an hour (30 minutes) so just multiply it by 2 so the minutes can equal an hour (60 minutes)