Answer:
Here is the formula:
Step-by-step explanation:
FV= future value of the annuity · PMT= amount of the periodic payment · r= annual interest rate written in decimal form · m=number of compounding
The domain and inverse of the function
is
Domain =
,

What is a function?
A function from A to B is a rule that assigns to each element of A a unique element of B. A is called the domain of the function and B is called the codomain of the function.
There are different operations on functions like addition, subtraction, multiplication, division and composition of functions.
The given function is

r(x) is not defined if x - 4 = 0
r(x) is not defined for x = 4
Domain =
,
Where
is the set of all real number
Let r(x) = y

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To learn more about function, refer to the link:
brainly.com/question/22340031
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240 is the answer
Step-by-step explanation:
3x4=12
12x20=240
10 feet is bigger than 3 yards I think not so positive