Solve the problem.
-Yearly sales of an electronic device $S ( t )$, in millions of dollars, $t$ years after 1997 can be estimated by $S ( t ) = 100 \cdot 6 ^ { t }$. What is the doubling time for the yearly sales? Round your answer to the nearest tenth.
A) $0.7 \mathrm { yr }$
B) $0.4 \mathrm { yr }$
C) $3.0 \mathrm { yr }$
D) $0.8 \mathrm { yr }$

Question

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The Answer of Solve the problem.
-Yearly sales of an electronic device $S ( t )$, in millions of dollars, $t$ years after 1997 can be estimated by $S ( t ) = 100 \cdot 6 ^ { t }$. What is the doubling time for the yearly sales? Round your answer to the nearest tenth.
A) $0.7 \mathrm { yr }$
B) $0.4 \mathrm { yr }$
C) $3.0 \mathrm { yr }$
D) $0.8 \mathrm { yr }$

Solve the Problem S(t)S ( t )S(t) , in Millions of Dollars

Solve the Problem $S ( t )$ , in Millions of Dollars