The owner of a bookstore developed a model for determining the price of
rare comic books. The price, P, of each book should vary directly with the
number of people, N, that have requested the book and inversely to the
number of such books in existence, M. If N=10 people, M=10,000 copies,
and P = $5, then find P for N = 200 people and M = 100 copies,

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction