There are 2 cell phone plans available from Cell phones R us company. Plan A charges 30$ a month plus $0.01 for every text message. Plan B charges $20 a month plus $0.05 for every text message. How many text messages do you need to send in order for plan A to be cheaper than plan B?
A.) 20 + 0.05m > 30 + 0.01m
B.) 20 + 0.05m < 30 + 0.01m
C.) 20 + 0.05m ≤ 30 + 0.01m
D.) 30 + 0.05m . 20 + 0.01m