Solve the problems.Mrs. Henson bought the following items: cheese, 
soda, 
; hamburger, 
; and gum, 
. How much did she spend in total?
A. $21.44
B. $23.31
C. $22.31
D. $22.44
Answer: D
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Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 3 ; local maximum at x = -3 ; concave up on (-?, -3) and (3, ?); concave down on (-3, 3) B. Local minimum at x = 3 ; local maximum at x = -3 ; concave up on (0, ?); concave down on (-?, 0) C. Local minimum at x = 3 ; local maximum at x = -3 ; concave down on (0, ?); concave up on (-?, 0) D. Local minimum at x = 3 ; local maximum at x = -3 ; concave down on (-?, -3) and (3, ?); concave up on (-3, 3)
Find the function value. If the result is irrational, round your answer to the nearest thousandth.Let f(x) = 2x. Find f(4.5).
A. 9 B. 22.627 C. 33.941 D. 45.254
Solve.A company has just purchased a new computer for $7280. The company chooses to depreciate the computer using the straight-line method over 8 years. A linear function that expresses the book value V of the computer as a function of its age x is 
Graph the linear function V.
A. 
B. 
C. 
D. 
Solve. A particular vitamin comes in 950 milligram tablets. Convert this to ounces. Round answer to the nearest thousandth, if necessary.
A. 0.038 oz B. 33.535 oz C. 9500 oz D. 0.38 oz