colin sends 53 text messages a day write an equation using two variables to show the relationship between how many text messages he sends a day, d, and the total number of messages he sent, t.

Let d represent the number of days and t represent the total number of messages Colin sent.

We know that Colin sends 53 text messages each day. Therefore, for every day (d), he sends 53d text messages.

So, the equation that shows the relationship between the number of days and the total number of messages is:

t = 53d