1.
Let A be the set of all students of a boys school. Show that the relation R in A
given by R = {(a, b): a is sister of b} is the empty relation and
R' = {(a, b) : the difference between heights of a and b is less than 3 meters) is
the universal relation.

Apath 3 m wide runs around the inside of a square park inside 60 m. find the area of the path. pls

Without graphing, identify the quadrant in which the point (x, y) lies if x < 0 and y < 0.

Mr. capuano, an art teacher, surveyed his students to find out whether they are satisfied with his classes. he also noted which class each student had taken. oil-painting satisfied: 17 not satisfied: 3 sculpture satisfied: 25 not satisfied: 5 what is the value of x in the relative frequency table for the survey results? round the answer to the nearest percent. 3% 6% 8% 15%