Answer: 
Step-by-step explanation:
Given
The initial population of a city is 
The annual growth rate is 
after 1 year it is

after 2 years, it is

after x years it is

In December she would have saved $1585 because 1235 + 250 = 1485. You can find how much money she raised in those 2 months by adding the totals of both months together, so 1485 + 1235 = 2720. She saved $2720 in the 2 months.
Answer:
67/20
Step-by-step explanation:
67/20=3.35
Answer:
- 5
Step-by-step explanation:
Substitute the given values into the expression
ax + by
= (- 2 × 1) + (3 × - 1)
= - 2 + (- 3)
= - 2 - 3
= - 5