Can you help me put these through least to greatest pls :) ( i’ll give your brainlest)

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

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).

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check