PLEASE I REALLY NEED THE ANSWER Q:Twins occur once in every 89 births. Identical twins occur 4 times in every 1,000 births. Triplets occur once in every 7.900 births. Write each birth frequency as a decimal. Round to the nearest ten-thousandth.

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?

36 inches/second = yards/minute how many yards?

A.s.a.! this is a similarity in right triangles. next (solve for x)a.) 12b.) 5c.) 12.5d.) [tex] 6\sqrt{3} [/tex]