Answer:
Step-by-step explanation:
Let 
be the cost of renting from Mozart's Music Store for 
years, and 
be the cost of renting from Bach's Music Store for years.
From the problem statement, we can come up with the following equations:
Plugging in 
for each equation, we can get the answer:
From this, we can see that the value is equal for both stores.
Negative since the answer would be -13
2.8 more people attended more shows in 2006 than in 2009
Answer:
0 and -2
Step-by-step explanation:
