The Scuba Club has 9 members, 6 girls and 3 boys. What is the ratio of girls to boys in the Scuba Club?
A. 2:3
B. 1:2
C. 2:1

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?

Abank gives 6.5% interest per year. what is the growth factor b in this situation?

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum