What is the value of the expression |a+b|+|c| when a = –3, b = 7, and c = –15?
a. 25
b. 5
c. 19
d. –11

D. -11 
becaus 7-3= 4 and 15-4 = -11 dont forget to add the negative XD

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c