7.5 grams, 4 half lives so 120-60-30-15-7.5
4 to 3
Explanation:
Putting a “to” In-between two numbers is another way of saying 4:3
Option 1 skjjeskjeejjxjjjd
They are traveling at the same speed namely 1cm/sec
Answer:
irrational numbers
pi belongs to the set of irrational numbers
