Dave is buying popcorn and sodas for his son and his three friends(4 kids total). He needs to buy atpeast one of the two items for each of the four. Popcorn costs $2.50 per bag and sodas cost $4.00 each. Dave can spend at most $20.00 if s represents the number of sodas and p represents the number of bags of popcorn, then write a system that models this scenario

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.