What is the slope and y-intercept of 16x+8y=192

Liesl grew 7/12 of a foot in one year. her little sister grew 1/3 of a foot during that same year. how much more did liesl grow than her little sister did

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

Can someone check if i did this correct. it’s number 4 if you’re wondering.