Select all the lines that have a slope of 5/2

We just started the introduction into circles and i have no idea how to do this.

Brad earns $12.75/hr and works 40 hours a week. what is his gross annual income?

Reyna has 3 dimes (worth 10 these coins at random, what is the probability that the two coins together least 35 cents? cents each) and 6 quarters (worth 25 cents each). if she chooses two of will be worth at