Whats the algebraic expression of two fifths of a number is -2

Christine went shopping and bought each of her six six nephews a? gift, either a video costing? $14.95 or a cd costing? $16.88. she spent ? $ 97.42 97.42 on the gifts. how many videos and how many cds did she? buy?

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288

Acar has a mass of 1.00 × 103 kilograms, and it has an acceleration of 4.5 meters/second2. what is the net force on the car?