Find the amount of the sales tax or the tax rate and the total cost. Round money answers to the nearest cent.Cost of item: $437 Tax rate: 3%
A. $8.74, $445.74
B. $131.10, $568.10
C. $13.11, $450.11
D. $17.48, $454.48
Answer: C
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A study asked 54 adults if they had taken art, biology, or cooking in school. According to the Venn diagram below, how many had taken
n((A ? B) ? C)
A. 33 B. 14 C. 15 D. 11
Solve the application. Write an expression to describe the situation and simplify the expression for the final answer.Nikki is fishing from a bank 18 feet above water level. In this location, the fish tend to feed at 40 feet below the surface. How long must Nikki's fishing line be to reach the fish?
A. 18 - (-40) = 58; Nikki's fishing line must be 58 feet long. B. 18 - (-40) = -18; Nikki's fishing line must be -18 feet long. C. 18 - (40) = -22; Nikki's fishing line must be -22 feet long. D. 18 - (40) = 22; Nikki's fishing line must be 22 feet long.
Determine whether the study is an experiment or an observational study.A poll is conducted in which professional musicians are asked their ages.
A. experiment B. observational study
Change the fraction or mixed number into an equivalent decimal. Use bar notation to write repeating decimals. 
A. 0.7
B. 0.6
C. 0.7
D. 0.7