Use the law of syllogism to determine whether a valid conclusion can be reached from the set of statements. if you are 18 years old, then you are in college. if you are in college, then you are not done learning.
a. not possible
b. you are no more than 18 years old.
c. you are at least 18 years old.
d. if you are 18 years old, then you are not done learning

However, if the workers do outside of what's normally expected, go ahead and tip.

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.