Change 2.32 kilograms to grams

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?

How can you tell when x and y are not directly proportional?

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is