Acircle is centered at (2, -5) and has radius 3. write its equation in standard form.
a) (x + 2)2 + (y - 5)2 = 3
b) (x - 2)2 + (y + 5)2 = 3
c) (x + 2)2 + (y - 5)2 = 9
d) (x - 2)2 + (y + 5)2 = 9

Adalyn drove 12 miles from her home to her school and then drove back. graph a shows her distance from home during the trip. graph b will show her distance from the school during the trip. complete each statement about graph b.

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?