To the nearest hundred what is the greatest whole number that rounds to 2500 and what is the least whole number

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?

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

What is the solution set of the quadratic inequality x^2-5< or equal to 0