The americans' changing lives (acl) study followed a nationally representative sample of americans ages 25 and older for 15 years beginning in 1986 and ending in 2001, assessing their physical health at four times during the 15-year period (house et al., 2005). the main finding of the study was that

What is the greatest challenge to the palestinian authority government in israel? a) territorial size b) lack of citizen participation c) disputes among parties d)threats from arab forces

Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?

Dominic and stacy each have a stamp collection. dominic has six fewer stamps than three times the number of stamps stacy has. dominic and stacy decide to give all of their stamps to their younger sister, mary. if stacy had s stamps, which expression represents the number of stamps that mary received? a. (3s − 18)(3s − 6) b. 2s − 18 c. 4s − 6 d. 4s − 18