Hey Guys I need HELP and fast please. My teacher doesn't teacher and she gave us a project. I also need to show my work. A patient is told to avoid caffeine for 8 to 12 hours before a blood test scheduled for 6 a. m. The blood test is reliable for up to 50 milligrams of caffeine in the bloodstream. The patient’s body metabolizes caffeine at a rate of 13% per hour. a. At 10 p. m., the patient drinks a cup of coffee containing 150 milligrams of caffeine. Will the patient be ready for the blood test by 6 a. m.? Explain. b. How many milligrams of caffeine could the patient have ingested at 7 p. m. and been ready for the blood test at 6 a. m.?

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?