What is the slope of the line that passes through the points (-5,2) and (-7,6)?

Question 5 spring semester final exam math evaluate

At a kentucky friend chicken, a survey showed 2/3 of all people preferred skinless chicken over the regular chicken. if 2,400 people responded to the survey, how many people preferred regular chicken?

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*