Answer:
A
Step-by-step explanation:
The lines that intersect at Park Avenue and Hawthorne Boulevard are perpendicular to each other because they intersect at a 90 degree angle.
75/15=5 so the answer would be 5 months
Patients who visit a clinic for the first time are asked to answer 15 questions about their health history.
Survey
A researcher randomly chooses 20 patients who come to the clinic with the flu and gives them an experimental drug. A randomly chosen group of 20 patients who come in with the flu receive a placebo.
Experiment
A doctor at the clinic asks patients who come in with a headache how many hours of sleep they get on a typical night.
Observational Study
Ana es diseñadora
nosotros somos muy delgados
El -es- astronauta
:))