Factor completely.

x8 - 1/81

answers are
(x 4 - )(x 2 + )(x 2 - )

(x 4 + )(x 2 - ) 2

(x 4 + )(x 2 + )(x 2 - )

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

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.