Lütfen şu 4 soruyu cevaplayın allah rızası için ACİL​

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).

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Aphrase is shown read the phrase and give me the answer