Which of the following is not one of the four main components of US federal government spending? Select the correct answer below:
healthcare
national defense
social security
education

What important race leader of the early twentieth century is being described?

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design

What is donald trump wanting to build and have finished by 2020?