A 90% confidence interval is found to be (120, 140). What is the margin of
error?
O A. 9
O B. 20
O C. 10
O D. 18
SUBM

Asystem of linear equations contains two equations with the same slope. select all of the correct statements. i a. the system may have two solutions. - b. the system may have infinitely many solutions. c. the system may have one solution. o d. the system may have no solution. submit