What was one reason for the implementation of the black codes? A. Rebuilding labor in the south
B. None of these are correct
C. Creating lasting relationships between races
D. Creating a new system of government

Which answer is it?

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a study of twenty 4th grade classrooms in which researchers ask the schools to systematically vary the time of day reading is taught, and collect weekly assessments of reading comprehension for each child over a three-month period.the collection of data, by a playground designer hired by the superintendent of schools, about the physical dimensions of school playgrounds, presence of fencing, and the kinds of equipment currently provided.a feasibility study for implementing a year-round school program, focusing on economic issues such a facilities utilization and transportation costs.an analysis of aggregate data comparing statewide high school graduation rates provided by the state department of public instruction, using county tax information.

Which choice best describes the general trend for the countries shown, for the period 2008 - 2010?

Which member of the president's cabinet is most likely to negotiate a treaty with a foreign country? secretary of the interior secretary of the treasury secretary of defense secretary of state