Which region of the united states was most associated with educated workers, unionized labor, and high land costs?

The Northeast.

Explanation:

In the northeastern US is the largest and oldest industrial concentration in the country, the so-called manufacturing belt. The resources and sources of energy are: iron ore, steel, petrochemical, textile, aeronautics, aerospace and technopolies.

This industrialization made this region the richest part of the country, where people had a better quality of life. Because of all this quality this region was the most associated with educated workers, unionized and high land costs.

b. major john c. frémont led a rebellion called the bear flag revolt.

explanation:

during the bear flag revolt, from june to july 1846, a small group of american settlers in california rebelled against the mexican government and proclaimed california an independent republic. the republic was short-lived because soon after the bear flag was raised, the u.s. military began occupying california, which went on to join the union in 1850. the bear flag became the official state flag in 1911.