Answer:
C =47.1 inches
Step-by-step explanation:
The circumference is given by
C = pi*d
C = 3.14 * 15
C =47.1 inches
By adding 3 then subtracting 2, you're pretty much just adding 1.
Starting from 7;
7, 8, 9, 10, 11, 12, etc.
I hope that helps!
Answer:
4/5
Step-by-step explanation:
Answer:
A. 2.8 billion years old
Step-by-step explanation:
1/16 = (1/2)^4, so 4 half-lives have elapsed.
4 · 0.700 billion years = 2.8 billion years
The rock is 2.8 billion years old.
