If mercury (II) oxide is heated and decomposes, what would the product of the reaction be? 4HgO → 4 ( ) + 2O2

Hg
HgO
Hg + O

If i have one apple and give you the apple, how many apples do i have?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.