How does nicotine produce a feeling of pleasure?

Why are feelings effecting people now then

Bella is reporting the pulse (heartbeats per minute) of a patient. which symbol is most useful for her? a. ’ b. “ c. # d. / e. ^

Two shoppers bought meat at the supermarket deli. the first shopper bought 3 pounds of meat for $9,87 . the second bought 4 pounds of meat for $16,76. can you tell if both shoppers bought the same kind of meat.