After the counterclockwise rotation R90 how did the coordinates of the preimage point C(3,6) transform to the image point C'(-6,3)?

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false

Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?

What are two numbers that have a sum of 15?