Find P, h, and B for the following rectangular prism, then use the values to solve for the lateral and total surface are of the rectangular prism. Use the top and bottom as the base.

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).

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Math it's appreciated. (picture provided)