Here is some record-keeping from a coffee shop about their paper cups. Cups are delivered 2,000 at a time. 1. Explain what a positive and negative number means this situation
2. How many paper cups are le at the end of the week?
3. How many cups do you think were used on Thursday? Explain how you know.

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.