PLEASE ANSWER
Pam and Jim are working on math homework. Their teacher gave them the following problem.
Use an inverse operation to help solve the equation x- 26= 28.
As the first step in solving, Pam writes x-26+26= 28+26. Jim writes x-26- 26=28-26. Who is incorrect, and why?
Choose the correct answer below.
A.
Jim is incorrect because he added 26 to each side instead of subtracting.
B.
Jim is incorrect because he subtracted 26 from each side instead of adding.
C.
Pam is incorrect because she subtracted 26 from each side instead of adding.
D.
Pam is incorrect because she added 26 to each side instead of subtracting.

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?