if 7a is two times as great as k, then a-k=
1. 7a/2
2. -2/5a
3. -5k/7
4. (2-6k)/7
5. -13a

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25