The solution set of inequalities is equal to how much?

It is when every value in the solution set with satisfy the inequality and no other value will. Example solve 2x+3 is less than or equal to 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.