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The charge in dollars for cab rides in one city is modeled by f(c) = 4 + 2.5m, when m is the number of miles traveled. What is the charge for a 4-mile ride?
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The charge in dollars for cab rides in one city is modeled by f(c) = 4 + 2.5m, when m is the number of miles traveled. What is the charge for a 4-mile ride?

User Cirrus
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To find the charge for a 4-mile ride, we need to substitute 4 for m in the function definition f(c) = 4 + 2.5m. Doing so gives us:

f(c) = 4 + 2.5(4)
= 4 + 10
= 14

Therefore, the charge for a 4-mile ride is 14 dollars.
User Isatsara
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