The population aged 65 years old and older (in millions) from 2000 to 2050 is projected to be
?
?
where 
is measured in decades, with 
corresponding to 2000. What will be the average population aged 65 years and older over the years from 2000 to 2040?
(Hint: The average population is given by 
. Multiply the integrand by 
and then use the method of substitution.) Please round your answer to one decimal place.
?
__________ million
Fill in the blank(s) with the appropriate word(s).
55.8
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Provide an appropriate response.Suppose the yearly demand function for an artist's paintings is p = 
.(a)If the current prices is $200.00 per painting, how many paintings are sold each year?(b)If the artist wants to sell 4 paintings per year, what should the price be?
What will be an ideal response?
Rationalize the denominator. Assume that all variables represent positive real numbers and that the denominator is not zero.
A. 
B. 
C. 
- 
D. 
Find the area of the region under the graph of f on [a, b].
f(x) = 
? 2x + 4; [?1, 2]
Select the correct answer.
a. 3
b. –12
c. 12
d. –3
Simplify, where possible.8(1 - y)
A. 8 + 8y B. 1 - 8y C. 8 - y D. 8 - 8y