The record high temperature for Asheville, North Carolina was 99°F. The record low was -17°F. What
is the difference between these two temperatures?

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?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels