please help me my last question on my math test please help me its due on 10:10am please help me please i really need help please

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).

Indicate the formula for the following conditions: p^c(n,r)=

What is the area of a triangle with vertices at (-3 3) (-3,2) and (1,2)?