The gross domestic product (in billions of dollars) can be approximated by p(t)equals564 plus t left parenthesis 36 t supersc
ript 0.6 baseline minus 103 right parenthesis, where t is the number of years since 1960. a) find upper p prime left parenthesis t right parenthesis. b) find upper p prime left parenthesis 45 right parenthesis. c) in words, explain what upper p prime left parenthesis 45 right parenthesis represents.