Add and subtract the following fractions: a) 3/8 + 5/16 b) 7/12 - 5/18

Multiply and divide the following fractions: a) 4/9 × 3/5 b) 8/15 ÷ 2/3

Convert the following fractions to decimals: a) 7/8 b) 3/20

Perform the following calculations: a) 0.75 + 0.46 b) 1.32 - 0.89 c) 0.8 × 0.35 d) 4.5 ÷ 1.2

Calculate the area of the following shapes: a) A rectangle with a length of 12 cm and a width of 8 cm. b) A circle with a radius of 7 cm (π = 3.14).

Find the volume of: a) A cuboid with dimensions 5 m × 4 m × 3 m. b) A cylinder with a height of 10 cm and a radius of 3 cm (π = 3.14).

Solve the following equation: 3x + 5 = 20

Solve the following equation: 2x - 7 = 13

Simplify the following expression: 4(3x + 2)

Simplify the following expression: 5x - 3 + 2x + 7

A blueprint has a scale of 1:50. What is the actual length of a pipe that measures 6 cm on the blueprint?

Calculate the length of the hypotenuse of a right triangle with one side of 5 cm and an angle of 30° (round to 2 decimal places).

Find the angle Θ in a triangle where the opposite side is 7 cm and the adjacent side is 24 cm (round to 2 decimal places).

A container weighs 15 kg on Earth. Calculate its weight on the Moon, where gravity is 1/6th that of Earth.

A steel bar has a mass of 24 kg. If the density of steel is 8 g/cm³, find the volume of the bar in cm³.

Calculate the angles in a triangle with sides measuring 5 cm, 12 cm, and 13 cm.

Find the perimeter of a semicircle with a diameter of 14 cm (π = 3.14).

Divide $1200 in the ratio 3:5.

If a mixture contains sugar and water in a ratio of 2:7, how much sugar is there in 450 ml of the mixture?

Simplify the following: $3^2 \times 2^3$

Simplify the following: $\sqrt{144}$

Solve: $x^3 = 64$

Solve: $x^2 = 121$