Ginny and Bob are both locksmiths.

Ginny uses the function f(x)=60x+80 to determine the charge to her customers, where x represents the number of hours of labor.

The table shows what Bob charges a customer for x hours of labor.

x (hours) 0 1 2 3 4
cost ($) 60 140 220 300 380
Which locksmith charges less for an initial fee for a service call?

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Ginny charges Response area for an initial fee, and Bob charges Response area for an initial fee. Response area charges less for an initial fee.