A regular reader of BYTE magazine, Fritz, has decided to purchase a computer with these particular specifications. These computers are have an approximate normal distribution with a mean of $850 and a standard deviation of $50. His budget is flexible, and he can afford to spend between $800 and $900. What percentage of these computers are within his budget? (Use the Empirical Rule 68, 95, 99.7)

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.