How much water was left in the tank when the aquarium worker finally caught the league based on the level of the Water were fish sick

Atriangle has sides with lengths of 10 yards, 13 yards, and 18 yards. is it a right triangle?

How do i do this? i don’t understand

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.