Answer:

Explanation:
Given : The function
models the cost of consumable computer supplies for a school district. In the equation, C represents the cost (in thousands of dollars), and x represents the number of years since 2015.
The number of years from 2015 to 2030=

Substitute t= 15 in the given equation ,we get

According to the model, the cost be for the year 2030 =
