HELP!!
The blue dot is at what value on the number line?

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 are the coordinates of the image of p for a dilation with center (0, 0) and scale factor 2

Find the measure for the angle indicated in bold