Which specific NASA goal did Apollo 9's mission
focus on?

"The primary objective of Apollo 9 was an Earth-orbital engineering test of the first crewed lunar module, or LM. Other prime objectives included an overall checkout of launch vehicle and spacecraft systems, the crew, and procedures."-NASA website

Explanation:

Explanation:The main idea of Apollo 9 was it was mainly just a test to see what it could do and how it would work so that Apollo 10 could go to the moon.

other sources of text

explanation:

this can be magazines, news reports, scholarly articles, textbooks, research papers etc.

all of the following apply except for (a. excessive credit on real estate resulting in defaulted loans.

in 1819, panic swept the country due,in part, to the rapid expansion of american manufacturing during the war of 1812 and the distress caused by the post-war british competition. the rapid expansion of american farming was another factor.

explanation: