Cathy pays $25 a month plus $0.05 per text message. She models this with the function C = 0.05x + 25. If the text messaging fee increases to $0.10, what is her new function?
A) C = 10x + 25
B) C = 0.10x + 25
C) C = 0.10x + 0.05
D) C = 0.05x + 0.10
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Home » Mathematics » Cathy pays $25 a month plus $0.05 per text message. She models this with the function C = 0.05x + 25. If the text messaging fee increases to $0.10, what is her new function? A) C = 10x + 25 B) C = 0.10x + 25 C) C = 0.10x + 0.05 D) C = 0.05x + 0.10