What is a dependent variable​

Which one ? is the answer and how to find this answer

Question 5 of 10 2 points if a population is a sample of the population could be a. registered voters; all citizens o o b. baptists; all religious people o c. people who purchased shoes; all customers o d. the entire school faculty; math teachers

Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj: