Marcy is concerned that her findings may be due to an extraneous uncontrolled variable and not her treatment. marcy is most concerned with:

a. triangulation.

b. respondent validation.

c. external validity.

d. internal validity.

Astore experienced a 14.2% fall in takings in february, compared to the previous month. their takings in february were ? 742,513.20 how much did they take in january?

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided