82.1 / 7.8= What is the answer yall

What is the reflection image of (5,-3) across the line y = -x?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?