Answer
(a) $\ln{0.5}=x+1$
(b) $\ln{t}=0.5x$
Work Step by Step
RECALL:
$e^y=x \longrightarrow \ln{x}=y$
Use the rule above to obtain:
(a) $\ln{0.5}=x+1$
(b) $\ln{t}=0.5x$
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