PLS HELP! WILL GIVE BRAINLIEST! ( complete the following by inserting the appropriate conversion factors and then calculate the final answer)

Find the value of the variable and the length of each secant segment

Which of the following is the rational exponent expression of 6 root f

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).