Use the graph given to write a polynomial function. (each box is 1 unit)

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 do i do this activity, is appreciated

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?