Aclassroom is arranged with eight seats in the front row 10 seats in the middle row 12 seats in the back room the teacher randomly assigned seats to students as they enter the classroom what is the probability of the first student who enters the classroom will be assigned a seat in front row

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.