On Question 2
Re-read paragraph 4.
Nevertheless, he examined whether a country's per capita chocolate consumption was related to the
number of Nobels it had won - a possible sign of a nation's "cognitive function." Using data from some major
chocolate producers on sales in 23 countries, he found a surprisingly powerful corelation."
If a reader did not know the meaning of correlation" what word in the paragraph would provide a
helpful context clue?
X a. Per-capita
b. Consumption
c. Related
d. Powerful

c. Related

Explanation:

a correlation is a mutual connection between things. the word, related, in that paragraph helps give out the meaning of correlation.

sorry i took long to answer, someone kept bugging me

the answer would be a

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