Question

answer the prompt:
a cell phone company uses the equation $c = $0.20t + $45.00 to determine the total cost, c, for a month of service based on the number of text messages, t.
identify the independent and dependent variables in this situation.
write your answer in the box to the right.

Explanation:

Answer:

Independent variable: the number of text messages, $t$
Dependent variable: total cost for a month of service, $C$