What are the domain and range of each relation? Drag the answer into the box to match each relation

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 expression is equivalent to log3(x+4)

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?