If u have 10 and add 20 and add 10

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

Use the graph of the sine function y=2sinθ shown below

Kayla has a $500 budget for the school party. she paid $150 for the decorations. food will cost $5.50 per student. what inequality represents the number of students, s, that can attend the party?