Point b is the image of point of a when a is rotated 90 counterclockwise around the origin point b must be the from the origin as point a

Point B must be the same DISTANCE from the origin as point A.

Step-by-step explanation:

We are given that,

Point A is rotated 90° counter-clockwise about the origin to get the image point B.

As, we know,

Rotation of 90° counter-clockwise about the origin changes the co-ordinate from (x,y) to (-y,x).

So, we see that the image of point A will lie in the 2nd quadrant.

Thus, we have that,

Point B must be the same DISTANCE from the origin as point A.

The correct answer would be DISTANCE

Step-by-step explanation:

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

go on the tube you might find some information there