What algebraic property is demonstrated in the equation below?
5(8x-4)-10=40x-20-10

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).

How do i find the missing angle measure in a polygon

If we pull out the middle player of team a and the fourth player of the team b. what will be the force of team a and team b? what is their sum of forces