If the length, in feet, of the first room is (2x+7) and the length, in feet, of the second room is (2x - 1). which expression models the area, in square feet, of the new room once the wall is knocked down? A. 6x +12
B. 4x2+18
C. 4x^2+ 13x - 4
D. 4x^2 +18x +18

Polynomial that can be factored as (3x-4)(3x+4)

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?

Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a. m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?