The domain is the space between the end points on the x axis
ex: D:-2(<=)x(<=)4 this means that the domain is any numbers between -2 and 4
Answer:

Step-by-step explanation:

The domain of a function is the set of input values that the function can take.
There are no restrictions on the value of x.
The domain of the function is all real numbers.

Answer:
the answer is 13.1 degrees celcius
Can you say the total cost? There's not enough to go by to answer this.