By 3 months of age: the ability to crawl has emerged. infants smile more at happy faces than ones that are expressionless. infants do not engage in visual scanning. an infant's coordinated reaching and grabbing of an object is common.

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

Say a certain manufacturing industry has 63.1 thousand jobs in 2008, but is expected to decline at an average annual rate of 1.7 thousand jobs per year from 2008 to 2018. assuming this holds true, what will be this industry’s percent change from 2008 to 2018? a. 70% b. -27% c. -17% d. -75%

What was the purpose of the federalist papers? a. to revise the articles of confederationb. to oppose ratification of the constitution c. to encourage support for the ratification of the constitutiond. to invite people to the constitutional convention