Students entering a medical program to become doctors are required to stay on campus from 8:00AM to 4:30PM. Today, they have forty-five minutes for lunch. Each student has a choice of eating lunch in a room where music is playing or a room where a television is on. For lunch, they have an option of pizza, hamburger, spaghetti, or chicken. What is the probability of choosing the television room with a hamburger? A. 1/8
B. 1/4
C. 2/3
D. 1/6

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.