9. Use the table to answer the question that follows. 52w high 52w low Stock Ticker Div Yield %P/E Vol 00's High Low Close Net chg
52.14 31.83 ZycodeczYO
64.372150 52.3641.8442.21 -0.95
13.42
12.31
Unix Co UNX
54.3 984 13.9412.7413.52 +0.75
Last year, Richard purchased 80 shares of Zycodec at its lowest price of the year and purchased 55 shares of Unix at its highest price of the year. If Richard sold all shares of both stocks today
at their respective closing prices, what was his overall rate of return? (2 points)
0 32.61%
25.45%
20.29%
O 0.75%

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)

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?