Given:
The cost to install x number of central air conditioning units for a company is given by the function

To find:
The cost to install 45 air conditioners.
Solution:
We have,

Putting x=45, we get





Therefore, the cost to install 45 air conditioners is $60433.33.
3z=5 because that's the answer bro lol
Answer:
only five points uneceptableeeeee
// I AM NOT SURE, IF SOMEONE SEES THIS AND ITS WRONG CORRECT ME DIRECTLY.
hmm.. never heard of properties but take a look at this :D