Adrienne and Stephen consume pizza, Z, and cola, C. Adrienne's utility function is UA=ZACA and Stephen's is Us=(Zs)0.5(Cs)0.5, Their endowments are ZA=16,CA=160,ZS=4, and CS=80. What are the compettive equlibrium prices, where one price is normalized to equal one? Determine p, the competitve price of Z, where the price of C is normalized to equal one- The competitive price, p, is f (Enter your response rounded to two decimal places.)