What is the unit rate for a 12 count of Cheetos that cost $12.48?

The graph of fx shown below has the same shape as the graph of gx = 3x^2 but is shifted down 2 units

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).

What does independent variable and dependent variable mean in math?