What things did the romans do that did not trade? select all that apply
a) raised taxes***
b) common $$***
c) eliminated pirates
d) pax romana
e) paved roads
f) enslaved people***

my answer ***

To what is the growth of civilization most clearly traced

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

Why has there been an increase in the older population within our prisons?