1. What is the value of π (pi) rounded to two decimal places?
2. Solve the equation: 3x + 5 = 17.
3. What is the area of a rectangle with length 6 cm and width 4 cm?
4. Calculate the square root of 144.
5. If a car travels at a speed of 60 km/h, how far will it travel in 3 hours?
6. What is the sum of the interior angles of a triangle?
7. Simplify the expression: 2(3x + 4) - 5.
8. What is the volume of a cube with side length 5 cm?
9. Solve the inequality: 2x + 3 < 11.
10. If a recipe calls for 2/3 cup of flour and you want to make 3 batches, how much flour will you need in total?
1. Jaká je hodnota x, pokud platí 9x + 6 = 30?
2. Jaká je plocha kruhu s poloměrem 5 cm?
3. Vyřešte rovnici: 4x + 8 = 20
4. Zjednodušte výraz: 4(x + 5) - 3x
5. Jaká je součet čísel 7 a 6?
6. Zjednodušte výraz: x2 + 3x + 2
7. Jaký je součin čísel 6 a 8?
8. Jaký je součet vnitřních úhlů trojúhelníka?
9. Vyřešte rovnici: 2x - 1 = 5
10. Zjednodušte výraz: 3(x - 2)2 + 2x - 1