A cell phone company charges $40 per month for unlimited calling, and $0.20 per text message sent. If t represents the number of
text messages Roxy sent last month, which expression represents the cost of her bill last month before any taxes or additional fees? 40 − 0.2t
(40 + 0.2)t
40 + 0.2t
(40 − 0.2)t
