Which line has a constant of proportionality between y and x of 5/4

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.

Find the measure of angle y. round your answer to the nearest hundredth. ( type the numerical answer only) a right triangle is shown with one leg measuring 5 and another leg measuring 14. an angle across from the leg measuring 5 is marked y degrees. numerical answers expected!

For the sequence [tex]a_{n} = 2n/(n+1)[/tex], what is the value of [tex]a_{10}[/tex]