Which expression is equivalent to n +n + n? A. 3 with n to the power
B. 3n
C. n with 3 to the power
D. n+3

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 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?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .