Help me and I’ll give you Brainliest and if u don’t know don’t answer

1 4 7 I think
I don’t know for sure though

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.

$22. if larry's profit were to minimize by one for every hour his store were to be closed, we would subtract 30 by 8.