Tim’s age is nine more than his sister, Jill. Twice his age added to twice Jill’s age is 330.

What fraction of one year is 8 months

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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.