Find the elapsed time between 6: 39 a. m. and 9: 20 a. m. 2 hours, 19 minutes 2 hours, 41 minutes 3 hours, 19 minutes 3 hours, 41 minutes.

a) 2 hours, 19 minutes
b) 2 hours, 41 minutes
c) 3 hours, 19 minutes
d) 3 hours, 41 minutes

need answers quick! : )
12 pts.

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).

34 cup. a serving of vegetable soup is 23 cup. the restaurant sold 20 servings of chicken noodle soup and 18 servings of vegetable soup. how many more cups of chicken noodle soup did they sell than cups of vegetable soup?

Divide. write in simplest form 41/6 divided by 10