Answer:

Step-by-step explanation:
The domain is all possible values for x.

There are no restrictions on x.
The domain is all real numbers.
2r=R
Because 2 of "r" make 1 R
Answer:
1.6
Step-by-step explanation:
1.6
Answer:
A. 
Step-by-step explanation:
The options are:

For this exercise it is important to remember that, by definition, the Exponential parent functions have the form shown below:

Where "a" is the base.
There are several transformations for a function f(x), some of those transformations are shown below:
1. If
and
, then the function is stretched vertically by a factor of "b".
2. If
and
, then the function is compressed vertically by a factor of "b"
Therefore, based on the information given above, you can identify that the function that represents a vertical stretch of an Exponential function, is the one given in the Option A. This is:

Where the factor is:

And 
18.386 rounded to the nearest hundredth would be 18.39