CPM Homework Help : A2C Problem 13-84

Without using a calculator, simplify and evaluate each of the following log expressions. Your result should be an expression without logarithms. Computer without a calculator.

$\operatorname{log}\left(4\right) + \operatorname{log}\left(25\right)$
Hint (a):
$\operatorname{log}\left(4 · 25\right)$
Answer (a):
$2$

$\frac { 7 ^ { \operatorname { log } _ { 7 } ( 3 ) } } { \operatorname { log } _ { 5 } 5 ^ { 4 } }$
Hint (b):
Use properties of logarithms
and exponents to simplify.