I have x N50 notes and y N100 notes. There are eight notes altogether and their total
value is N550. How many of each note do
I have?​

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

Lewis structure and molecular geometry for nh2cl

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro