Jacob is choosing a cell phone plan. If five messages cost $1 and 20 messages cost $4, what is the rate of change of the cost per message?

-$2 per message

$2 per message

-$0.20 per message

$0.20 per message

Respuesta :

The answer is $.20 per message

Answer:

20 cents per message

Step-by-step explanation:

ACCESS MORE