A utility company charges $0.28 per kilowatt hour of electricity plus a $35 basic connection fee each month. Formulate a function function models an electric bill as a function of electricity usage (k).
A) f(k) = 0.28k + 35
B) f(k) = 0.35k + 28
C) f(k) = 0.28k − 35

The monthly texting plan of all star cell is $11 per month and $0.25 per text. the monthly texting plan of top line cell is $14 per month and $0.15 per text. a student wants to set up a system of equations to find the number of texts for which the total monthly cost of the two companies is the same. he uses the variables x and y. he lets y represent the total monthly cost. what will x represent? x = number of texts x = cost of the total number of texts x = total monthly cost x = cost of each text