Astudy is said to have internal validity if the researcher can be relatively confident that

Ball is tossed up in the air at its peak, it stops before beginning to fall.the ball at its peak has

Catherine sat down will all of her income details from the past year to calculate the total income she had in that period. after she created a consolidated income statement, she deducted some tax-exempt income details from the statement. what term would catherine use for this final income calculation?

Based on this map, what can be concluded about the inca empire? (4 points) it was in a highlands region. it was in a mountainous region. it was in the amazon basin. it was in north america.