Answer the next four questions based on the following data using year 1 as the base year.All dollars are in billions. 
(a) Find real income in year 4.(b) What was the percentage rise in prices between years 1 and 3?
(c) What was the percentage rise in prices between years 2 and 4?
(d) What was the increase in real income from year 3 to year 4 in %?
Definitions:
Jalapeno Peppers
A variety of medium-sized, green or red pepper that possesses a warm, burning sensation when eaten, belonging to the species Capsicum annuum.
Neurotransmitter
Chemical substances in the nervous system that transmit signals from one neuron to another across synapses, influencing mental and physical processes.
Pheromone
A chemical substance produced and released into the environment by an animal, affecting the behavior or physiology of others of its species.
Social Behavior
Social behavior denotes actions among individuals within a society, influenced by various social, cultural, or psychological factors.
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