What two integers does square root 140 fall between?

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).

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Apackage of orgainc strwberries costs $1.50 while there in season and $2.25 when not in season what the percent increase