I need help I've been stuck for a while
Solve : x - 7 = - 6

How do i work this problem out using the equation a=pe^rt

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 you write a paragraph proof to prove that the corresponding angles shown are congruent