A doll sold for $228 in 1975 and was sold again in 1990 for $401. Assume that the growth in the value V of the collector's item was exponential a) Find the value k of the exponential growth rate. Assume V = 228. k= 0.038 (Round to the nearest thousandth.) b) Find the exponential growth function in terms of t, where t is the number of years since 1975. V(t) = H

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