Solve the problem.Carole's car averages 13.4 miles per gallon in city driving and 23.3 miles per gallon in highway driving. If she drove a total of 533.6 miles on 28 gallons of gas, how much of the gas (to the nearest gallon) was used for city driving?

A. 16 gallons
B. 21 gallons
C. 12 gallons
D. 14 gallons


Answer: C

Mathematics

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Using the horizontal-line test, determine whether the function is one-to-one.

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Find the surface area of the right square pyramid shown below.

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Solve the problem.The following table shows the number of dog collars, in thousands, produced by Allied Pet Products in the three years considered. For a function of the form f(x) = ax2 + bx + c that fits this data, what is the value of b? 

A. -1.2 B. 1.9 C. 2.3 D. -1.6

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Analyze the graph and write the equation of the function it represents in standard form f(x) = a(x - h)2 + k. 

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Mathematics