Question

question 15 (1 point) joans cellphone company charges her $30 a month plus $0.10 for each text she sends. write an expression that shows joans cell phone bill. 30 + 0.10 + t 30 + 0.10t 30 = 0.10t 0.10 - 30t

Explanation:

Step1: Identify fixed and variable costs

Fixed cost is $30 (monthly charge). Variable cost: $0.10 per text, let \( t \) be number of texts. So variable cost is \( 0.10t \).

Step2: Form the expression

Total bill = fixed cost + variable cost = \( 30 + 0.10t \).

Answer:

B. \( 30 + 0.10t \)