the perimeter of a rectangle is 12x+4. if the width is 2x, the length of the rectangle is?

Question

question 2. the perimeter of a rectangle is 10k-12. if the length of the rectangle is


3.the lengths of consecutive sides of a rectangle are represented by 2x+3 and x+4. express the area of the rectangle in terms of x.

guys i need it for right know

Answer 1

the perimeter of a rectangle is 12x+4. if the width is 2x, the length of the rectangle is?
(1/2 (12x+4) ) - 2x

6x + 2 - 2x
4x + 2

the lengths of consecutive sides of a rectangle are represented by 2x+3 and x+4. express the area of the rectangle in terms of x.
(2x + 3)(x + 4)

2x^2 + 8x + 3x +12
2x^2 + 11x +12