The outside temperature changes -4.8°F in 4 hours. What is the average change in temperature each hour? 1 2°F

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 is the result of the following division?

The radius of a sphere is 3 inches. which represents the volume of the sphere?