Answer
a.) 2
b.) 2
c.) 10
Work Step by Step
$Evaluate$ $the$ $expression:$
a.) $\log_6 36$
b.) $\log_9 81$
c.) $\log_7 7^{10}$
a.) $\log_6 36$
Rewrite 36 as $6^2$ [Note: $6^2 = 6\times6 = 36$]
$\log_6 6^2$
Use the Third Property of Logarithms: $\log_a a^x = x$
$\log_6 6^2 = 2$
b.) $\log_9 81$
Rewrite 81 as $9^2$ [Note: $9^2 = 9\times9 = 81$]
$\log_9 9^2$
Use the Third Property of Logarithms: $\log_a a^x = x$
$\log_9 9^2 = 2$
c.) $\log_7 7^{10}$
Use the Third Property of Logarithms: $\log_a a^x = x$
$\log_7 7^{10} = 10$