Cos(-35°) = .

cos 55°
cos 35°
-cos35°
-cos 325°

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

Dawn is selling her mp3 player for 3 4 of the original price. the original price for the mp3 player was $40. how much is she selling her mp3 player for?

You use technology ans find a sum of 6.712e-8. write this sum in standard form