(I'm having trouble answering this word problem, please help me)
Susan is looking into a new cell phone carrier. She researches her options and finds the two companies which off the best reception in her neighborhood offer very different monthly plans. Write a function rule which represents each company’s monthly fees.
A) Company A offers unlimited minutes and texts for a flat fee of $50 per month and charges $1.50 for each GB of data used per month.
B) Company B offers unlimited minutes and texts for a flat fee of $35 per month and charges $5.00 for each GB of data used per month.
f(x)=Cost A = 50 + 1.5 x where x = GB
f(xb) = Cost B = 35 + 5.0 x where x = GB
f(x)=Cost A = 50 + 1.5 x where x = GB
f(xb) = Cost B = 35 + 5.0 x where x = GB