Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.15 as soon as you get in the taxi, to which a charge of $1.90 per mile is added. Find an equation that can be used to determine the cost, C(x), of an x-mile taxi ride, and use this equation to find the cost of a 4-mile taxi ride.
A. $10.65
B. $9.93
C. $9.63
D. $9.75
Answer: D
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Solve the problem.A manufacturer contracts to mint coins for the federal government. How much variation dr in the radius of the coins can be tolerated if the coins are to weigh within 1/50 of their ideal weight? Assume that the thickness does not vary.
A. 2.0% B. 1.0% C. 0.010% D. 0.020%
Solve the system. If there is an unlimited number of solutions, find one of them.x + y - 2z = 83x + z = -62x - y + 3z = -14
A. x = -1, y = -2, z = 2 B. x = 1, y = 1, z = -2 C. Unlimited: x = -2, y = 10, z = 0 D. Inconsistent
Convert the area as indicated.0.044 square meters to square millimeters
A. 440 mm2 B. 4400 mm2 C. 44 mm2 D. 44,000 mm2
Write the equation of the circle with the given center and radius.center (0, 2), radius 
A. (x + 2)2 + y2 = 225 B. x2 + (y + 2)2 = 15 C. x2 + (y - 2)2 = 15 D. (x - 2)2 + y2 = 225