What is the discriminant of the quadratic equation

For the equations below which statement is true ? -2x=14 6x=-42

Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?