Eric's cell phone service costs $40.00 a month for unlimited calls. He also pays $0.02 for each text message he sends. Which equation represents the total cost, C. in dollars, for a month when Eric sends text messages?

O A C = 40.021

O B C = 40 -0.021

OC C = 0.021 - 40

OD. C = 0.021 + 40

A. 40.021

Step-by-step explanation:

Unlimited calls = $40

Text message = $0.021

NOTE:There is a difference between the value you gave for cost of text messages in the question and the values given in the group of answers. I will use $0.021 for cost of text messages since it is common to all answer choices.

Total cost = Cost of unlimited calls + cost of text messages

C = $40 + $0.021

= $40.021

Therefore, the equation which represent the total cost in dollars for a month is 40.021

A. 40.021

the third picture

step-by-step explanation: