Peter says, "If you subtract 19 from my number and multiply the difference by - 7, the result is - 140." What is Peter's number?
Peter's number is

Which expression gives you the distance between the points (5,1)and(9,-6)

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

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.