5/8 - 1/4 = 5/8 - 2/8 = 3/8.

50 ÷ 2 = 25; 3 × 5 = 15; 25 + 15 = 40.

60% of 150 = 0.6 × 150 = 90.

7/10 - 1/5 = 7/10 - 2/10 = 5/10 = 1/2.

7/10 - 3/5 = 7/10 - 6/10 = 1/10.

7/10 = 0.7.

7/8 - 3/8 = 4/8 = 1/2 after simplification.

3 + 5 = 8; 8 × 8 = 64; 64 - 10 = 54.

3 + 5 = 8; 8 × 8 = 64; 64 - 16 = 48.

The angle between a tangent to a circle and a chord drawn from the point of contact is always 90 degrees.

The angle between a tangent and a chord through the point of contact is equal to the angle in the alternate segment.

The angle between a tangent and a radius at the point of tangency is always 90 degrees.

The angle between two tangents from a point outside a circle is given by the formula: angle = 90° - (angle subtended by the radius at the point of tangency). Here, the angle is 45°.

The angle between the two tangents is twice the angle between the radius and the tangent, so it is 2 * 45 = 90 degrees.

Area = πr². The radius r = diameter / 2 = 10 / 2 = 5 units. Area = 3.14 * 5² = 3.14 * 25 = 78.5 square units.

The area of a rectangle is given by the formula length * width. Thus, 8 * 3 = 24 square units.

Area = (1/2) * base * height = (1/2) * 6 * 8 = 24.

The diagonal of the square is equal to the diameter of the circle, which is 20 cm. Side of the square = diagonal / √2 = 20 cm / √2 = 10√2 cm. Area = (10√2 cm)² = 200 cm².

Perimeter of a square = 4 × side, so side = perimeter / 4 = 40 cm / 4 = 10 cm. Area = side × side = 10 cm × 10 cm = 100 cm².

Area = 1/2 × (base1 + base2) × height = 1/2 × (10 cm + 6 cm) × 4 cm = 32 cm².

Area = 1/2 × (base1 + base2) × height = 1/2 × (10 cm + 6 cm) × 4 cm = 32 cm².

The average sales amount per quarter for Product A is $2000.

The average sales per product is 2000 total sales divided by 4 products, which is 500.

Total sales in Q2 is $10000 and there are 5 products, so average sales per product is $2000.

Product A's total sales are $4000 across 4 quarters, averaging $1000 per quarter.

The scores for Subject B are 70, 75, 80, and 85. The average is (70 + 75 + 80 + 85) / 4 = 77.5, rounded to 75.

The total score is 300 for 4 students, so the average is 300/4 = 75.

CI = P(1 + r)^n - P = 1500(1 + 0.12)^2 - 1500 = 1500(1.2544) - 1500 = $381.60.

Compound Interest = P(1 + r/n)^(nt) - P = 1000(1 + 0.05/1)^(1*2) - 1000 = 1000(1.1025) - 1000 = 102.50.

Compound Interest = P(1 + r/n)^(nt) - P = 1000(1 + 0.05/1)^(1*3) - 1000 = 1000(1.157625) - 1000 = $157.63