Which of the following is an example of a fixed-interval reinforcement schedule? a) Getting paid by the week
b) Getting a rewards for good behavior once in a while
c) Getting paid for each time-share you sell as a realtor
d) When a dog gets a treat every time it sits on command

tbh idk same thing here

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.  

d - failures.

the only attempted british colony in north america before 1600 was roanoke, virginia, which was a total failure. england claimed several areas, including newfoundland, but made no sustainable attempts to colonize them before 1600.

answer; utilitarian;