You are the cook in your family, you're a great cook, and you take great pride in your cooking. You cook meals all the time, but you have noticed that your
significant other only compliments your cooking occasionally. Sometimes your
significant other gives you a compliment for each meal that you cook, but
sometimes several meals go by without a compliment. You've been keeping
track, and you've noticed that on average they praise your cooking for one
quarter of the meals, but it seems random. In this example, the compliments
are based on
Select one:
O a. a variable ratio schedule
O b. a fixed ratio schedule
O cia variable interval schedule
O d. a fixed interval schedule
o e, a continuous reinforcement schedule

Which best describes the purpose of the south carolina exposition and protest, which was written by john c. calhoun? a) to explain why the south was nullifying the tariff of 1828 b) to describe the ways the tariff of 1828 would southerners c) to persuade northern states to rebel against the federal government d) to ask england for if the south decided to secede from the union

What words in the preamble to the constitution reflect the principle of popular sovereignty

“dear sir: it is with great reluctance, i trouble you on a subject, which does not fall within your province; but it is a subject that occasions me more distress, than i have felt, since the commencement of the war; and which loudly demands the most zealous exertions of every person of weight and authority, who is interested in the success of our affairs. i mean the present dreadful situation of the army for want of provisions, and the miserable prospects before us, with respect to futurity. it is more alarming than you will probably conceive, for, to form a just idea, it were necessary to be on the spot. for some days past, there has been little less, than a famine in camp. a part of the army has been a week, without any kind of flesh, and the rest for three or four days. naked and starving as they are, we cannot enough admire the incomparable patience and fidelity of the soldiery, that they have not been ere this excited by their sufferings, to a general mutiny or dispersion. strong symptoms, however, discontent have appeared in particular instances; and nothing but the most acitive efforts every where can long avert so shocking a catastrophe.” what’s the central idea?