By 1965, more african americans had professional and managerial jobs than whites.

Executive Order 11246 (1965), and later executive orders, demand from federal contractors to take affirmative action to provide that all individuals have an equal opportunity for employment, without regard to race, color, sex, religion, or national origin.  

The growth of African–American employment (particularly for women) in the public sector and among public contractors after Executive Order 11246 seems strong.

African–American male employment increased at a 37 % faster in the contractor sector; at the same time, white male employment declined at a 12% in the contractor sector.

Explanation:

the california missions began in the late 18th century as an effort to convert native americans to catholicism and expand european territory. there were 21 missions in all, lasting from 1769 until about 1833.   the missions were built by the spanish starting in 1769 in order to “colonize” the territory of alta california. so the missions were important because they were the means of settling california. it also wanted to keep other european countries out of alta california. building settlements along the coast would them meet these goals. missionaries wanted to convert the indians to the roman catholic faith. california indians did much of the work to build missions.

the answer is b. 300t + 3/2xt