After the crusades, what social class became important to expanding trade networks?

working class
bourgeoisie
middle class
proletariat

What is the most famous discovery attributed to isaac newton ? a) barometer b) thermometer c) laws of universal gravitation d) telescope

During world war ii who is the commander-in-chief of the pacific fleet

Which of these marketing methods henry ford sell the model t to many people who had never before owned a car? a) offering free maintenance on cars for a full year b) airing television commercials with memorable slogans c) advertising with the new communication outlets such as radio d) offering many different colors and models for buyers to choose from