Benito is selling t-shirts for $8 each for his school fund-raiser. so far, he has sold 16 t-shirts. how many more does he need to sell to reach his goal of $200 in sales? three of these equations solve for the number of t-shirts, t, he still needs to sell to reach $200 in sales. which equation does not? a. t = 9 b. 8(t + 16) = 200 c. 8t + 128 = 200 d. 8t + 16 = 200

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?