Answer
a. $P = \frac{c}{W^k}$
b. 1866; 64 people
Work Step by Step
Given the equation $\log P = \log c - k \log W$
a. Solve for P.
$\log P = \log c - \log W^k$
$\log P = \log (\frac{c}{W^k})$
$P = \frac{c}{W^k}$
b. Given k = 2.1, c = 8000
i. w = 2 (in millions), $P = \frac{8000}{2^{2.1}} = 1866$ people having over 2 million
ii. w = 10 (in millions) $P = \frac{8000}{10^{2.1}} = 64$ people having over 10 million
