If you walk 100 meters per minute how long will it take you to walk 2 kilometers?

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).

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

The difference between tax advoidance and tax evasion