Please answer my previous question.. u will get 15 points there, its same as this question

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?