Which best identifies an element of an effective summary. a. it includes the exact words of the author. b. it is objective, or free of bias. c. it uses quotation marks. d. it includes the professional qualifications. plz

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin