Kevin uses his cell phone to send text messages. The monthly charge for text messaging is $13 plus $0.05 for each message sent. The company is offering a new plan that costs a flat rate of $0.11 per text message. How many text messages does Kevin need to send in order for the new plan to be a better option?

a) Write the above word problem as a single variable linear inequality.

b) Use the inequality from part "a" to determine how many text messages Kevin needs to send in order for the new plan to be a better option.