Which four slave states remained in the union throughout the war?

The 4 border slave states (in between the Union and Confederacy) remained in the US, and comprised of Delaware, Kentucky, Missouri, and Maryland.

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a)scientists

explanation:

the national defense education act had two main goals. the first one was to provide personal that was oriented to defense, including scholars, engineering students and so on. the other goal was to provide financial assistance for the students who would be enrolling at colleges and universities in the 1960s.

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation: