I. Identify the figure and find its area. A square with side 10 cm. II. Solve the equation: 4x + 12 = 28.

I. Square Area

The figure is a square with a side length of 10 cm.

The formula for the area of a square is $$A = s^2$$, where $$s$$ is the side length.

Area $$= (10 ext{ cm})^2 = 100 ext{ cm}^2$$.

II. Solve the Equation

The equation to solve is $$4x + 12 = 28$$.

1. Subtract 12 from both sides of the equation:
• $$4x + 12 - 12 = 28 - 12$$
• $$4x = 16$$
2. Divide both sides by 4:
• $$\frac{4x}{4} = \frac{16}{4}$$
• $$x = 4$$

Ответ: Площадь квадрата равна 100 см². Решение уравнения: x = 4.