A telephone company offers a monthly cellular phone plan for $24.99. It includes 350 anytime minutes plus $0.25 per minute for additional minutes. The following function is used to compute the monthly cost for a subscriber, where x is the number of anytime minutes used. { 24.99 if 0 < x <350 C(x) = 0.25x - 62.51 if x > 350 Compute the monthly cost of the cellular phone for use of the following anytime minutes. (a) 250 (b) 400 (c) 351 (a) C(250) = $ (Round to the nearest cent as needed.) (b) C(400) = $ (Round to the nearest cent as needed.) (c) C(351) = $ (Round to the nearest cent as needed.)

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