In the 1980's, at any given time, how many active serial killers were there in the U. S.?

1. kepler's three laws resulted from his careful analysis of data, and were not derived from a mathematical model. a. experimental b. hypothetical c. theoretical d. observational 2. which of the following was the earliest solar system model to exist? a. aristotelian b. heliocentric c. copernican d. ptolenmiac

4sentences over a chronicle of a teen killer

The car wash owner uses the equation y=x+44 to model the data, where x represents the number of days the business has been open and y represents the number of cars washed.