If triangle ABC was rotated 90 degrees counterclockwise about the origin, what would the ordered pairs be for A'' (-2, -1)
(-1, -2)
(1, -2)
(2, -1)

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Find two numbers if their sum is 91 and the ratio is 6: 7?

How do you write 600 as a product of its prime factors (index! )