Answer:

Step-by-step explanation:
Given




Required
Evaluate 
Expand

Further expand

Apply product rule of logarithm

Substitute values for log(7) and log(3)


Answer:
-13
Step-by-step explanation: hope this help
Pet store is a better price because it cost $14.54 while pet store 1 is $14.88. Pet store 2 is cheaper by 34 cents.