Solve the problem.A consumer group in one city compares the costs of goods and services in that city over various years, and uses 1970 as a base. The same goods and services that cost $100 in 1970 cost $42 in 1941. Assuming the exponential-decay model, find the value of k, and write the equation. Round the value of k to the nearest thousandth. Let t be the number of years before 1970.
A. P(t) = P0e-0.035t
B. P(t) = P0e-0.032t
C. P(t) = P0e-0.03t
D. P(t) = P0e-0.028t
Answer: C
Mathematics
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