In his correlational research, Dr. Martin discovered that university graduates earn significantly more money than high school graduates. He also found that the more education people had, the less likely they were to be diagnosed with psychological problems. In this research, it appears that there is a correlation between education and income and a correlation between education and number of psychological problems.

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.

answer; a cost benefit analysis;

answer; role- taking;