Which sentence most clearly uses an ethos appeal? A. The look on this poor child's face is the only reason you need to
donate today
B. If you buy our stock now, you can double your money before the
year is out.
C. As a professor of ancient history, I know a thing or two about
classical Greece.
D. All of you should feel ashamed for not doing anything about crime
in America.

C

Explanation:

Ethos confirms the credibility of a writer or a speaker, and thus they become trustworthy in the eyes of listeners and readers who, as a result are persuaded by the arguments. Ethos of a speaker or a writer is created largely by the choice of words he or she chooses to convince listeners or readers.

this is the answer , p = 1 + (1/10)x

step-by-step explanation:

we have,

at sea level pressure is 1 atmosphere (i.e at x =0, p0=1 atmosphere)

at depth 23 meters , pressure = 3.3 atmosphere

since the pressure increases at constant rate as the depth increases, so we can write a relation as:

p =p0 +   kx   , where p is the pressure  , p0 is the initial pressure, x is the depth and k is constant rate of increasing.

to find constant rate k, plug p = 3.3 , p0 = 1 and x= 23 meters

we get,

  3.3 = 1 + k * 23

k = 2.3 / 23   = 1/10

so we can write the function formula as:   p = 1 + (1/10)x