Which is enough information to prove that u parallel to v? Angle 2 is congruent to angle 4
Angle 4 is congruent to angle 8
Angle 6 + angle 7 = 180 degrees
Angle 3 + angle 4 = 180 degrees

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?

Need on this one asap im almost done with this subject

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?