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28. Find the total value of the given income stream over the interval 0 _ t

28. Find the total value of the given income stream over the interval 0 t 610 years: R(t) = 80,000 +2,OOOt B) $850,000 A) $900,000 E) $1,500,000 C) $700,000 29. Continuing with the previous problem what is the future value of the income stream at the end of the interval if annual interest is 8%? D) $977,992.01 30. A study of U.S. colleges and universities resulted in the demand eqUation q = 20,000 2p , where q is the enrollment at a public college or university and p is the average annual tuition (plus fees) it charges. Officials at Enormous University have developed a policy whereby the number of students it will accept per year at a tuition level of p dollars is given by the supply equation, q = 7,500+0.5 p. Find the equilibrium tuition price, p. A) $2,500 D) $7 ,500 B) $3,750 E) $10,000 C) $5 ,ooo 31. Continuing with the previous problem, what is the consumers' surplus at the equilibrium tuition price? B) $25 C) $37,500 ,ooo 32. Continuing with the previous problem, what is the producers' surplus at the equilibrium tuition price? C) $75,000,000