Explain the path that sound takes, from outside our bodies to our brains. List at least four steps

1. sound waves

2. eardrum vibrates

3. the bones in the middle ear amplify

4. the hair cells move up and down

34+13= 47

step-by-step explanation:

47-34=13

coordinates of r(b,c)

slope of nm is 0.

step-by-step explanation:

the midpoint of the line joining the points (x₁,y₁) and (x₂,y₂) is given by

the midpoint of the line segment nk is given by

∴r(b,c)

the slope of the line joining the points (x₁,y₁) and (x₂,y₂) is given by

slope of rs is

hence

coordinates of r(b,c)

and slope of nm is 0.