The actual population of the U. S. (as of 2012) is approximately 3.14 x 10^8. How does the population density of California (i. e., the number of people per square mile) compare with the population density of the U. S?

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).

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? will mark the

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class