Answer:
C) The summer housing costs increase by 9% each year.
Step-by-step explanation:
Based on the information provided, the option that best represents what 1.09 represents in the given expression is:
C) The summer housing costs increase by 9% each year.
The number 1.09 represents a multiplier that is used to increase the summer housing costs each year by 9%.
Answer: C.
Step-by-step explanation: For compound and simple interest, the multiplier (which is 1.09 in this case) shows how the value of something increases or decreases each year. (in this case, it's increasing)