Answer:
Longitudinal study
Step-by-step explanation:
Information is collected over extended periods of time in a longitudinal study, but in cross-sectional, natural observation, and experimental studies, information is collected over short periods of time or in one time only. Based on the choices given, this type of study would be a longitudinal study.
4,408,730 = 4,000,000 + 400,000 + <span>8,000 + 700 + 30 </span>
Answer:
9.60 dollars tip is $1.60
Step-by-step explanation:
