**Answer:**

<u>**x = 6, length = 8 cm and width = 7 cm**</u>

**Step-by-step explanation:**

**1. Let's review the information given to us to answer the question correctly:**

Area of a rectangle = 56 cm²

Length of the rectangle = x + 2

Width of the rectangle= 2x - 5

**2. Solve for x. Round to the nearest whole number.**

Area of a rectangle = Length * Width

(x + 2) (2x - 5) = 56

2x² + 4x - 5x -10 = 56

2x² - x - 66 = 0

**Factoring, we have:**

(2x + 11) * (x - 6) = 0

x₁ = 2x + 11 = 0 ⇒ 2x = -11; x₁ = - 5.5

x₂ = x - 6 = 0 ⇒ x₂ = 6

**We picked x₂ because x₁ will give us negative values for length and width.**

Length = 6 + 2 = 8 cm

Width = 2 * 6 - 5 = 12 - 5 = 7 cm

Is it 540, 45, 34 for your numbers?

The height is 400 mm high.

60 reaches 300 by a factor of 5

so if you do 80 x 5 you get 400.