Question

a cell phone plan offers a monthly rate of 25$ for unlimited minutes plus $.05 per text message. which algebraic expression below represents the total cost for this cell phone plan in terms of "x"?

Answer 1

I guess it's ( P(x)is the plan in terms of messages sent ) :

25$ is a constant value
(0.05$ per text)*number of text messages sent

so ...
P(x)=0.05*x + 25

where x is the number of messages sent