Your employer has 600 business cards printed for you, and you give away 280 of them. to the nearest hundredth, what percent of the cards is left?

Can somebody me out with this question

The sum of two numbers is 12 and their difference is 18 what are the two numbers

If benito is selecting samples of five values from the table, which row will result in the greatest mean? population data row 1 4 2 2 3 3 row 2 3 3 4 3 2 row 3 2 4 3 4 3 row 4 3 4 4 7 3 row 1 row 2 r