Evaluate each expression if a = 6, b=3, and c= 2. 1. C+4
18
5
2. a-b
3.
2.
a
3
4. b=3
6
5. a-1
8
6. 20
3
7. ab
8. 6+ c
4

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

What is the value of r of the geometric series?

Which of the following answers is 5/25 simplified? 1/5 5/5 2/5 1/25