1. the perimeter of a rectangle is given by the expression below, where l is the length of the rectangle and w is the width.
2(l + w)
find the perimeter of a rectangular window frame with a length of 19 inches and a width of 3 inches.

2(l+w)
width=3
length=19
 now the easiest thing you can do is this= 19+3+19+3= 44
or you can say 19+3*2=44

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