Help please

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Which of these triangle pairs can be mapped to each other using two reflections?

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.