Show your work and find the surface area

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?

Which fraction below is equivalent to 10/12?

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l