4) Oxygen is an element that was discovered in 1772 by Carl Wilhem Scheele. One atom of oxygenhas 8 electrons, 8 protons and 8 neutrons. Calculate the mass, in kg, of the protons in oxygen. Show your working.

i am not good at the elements

Step-by-step explanation:

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent

c) the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

town a, median = q2 = 30

town b, median - q2 = 25

so the median for town a 30" is greater than the median for town b 25"