Use the distributive property to express 30+75

Tina practice piano for 15 hours last month and 45 hours this month use multiplication to write a statement comparing me i was tina practice during the two months use addition to write a statement comparing the hours tina practice during the two months

Ineed with number 17 i don’t get it at alll

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