Which graph shows H(1,4)

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny