What is an equation of the line containing the points? (0,0); (4,7)

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

When y’all answer can y’all explain too !

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?