Please help me I don’t know how to do this

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?