Which of the following statements are always true when a transversal crosses parallel lines? 1.several congruent angles are formed. 2.vertical angles are formed. 3.complementary angles are formed. 4.supplementary angles are formed. 5.obtuse angles are formed.

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?