Eminem or 50 cent or both (paintely waiting is a song made by both)

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

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?

Answer this question only if you know the 30 points and