After 11 mo of deputation, the clarks had raised three- fourths of their monthly support. if their goal was $3800 per month, how much support had been raised?

Can someone be awesome and me with : (

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 range for 31,39,29,34,37,24,36,33,34,28