Complete the factored form of the algebraic expression 18a+3=3

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).

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

What percent of the circle below is shaded?