Discount = 20% of 150 = 150 * 20 / 100 = 30. Sale price = 150 - 30 = 120.

Discount = 20% of 150 = 30. Sale price = 150 - 30 = 120.

Discount = 20% of 250 = 50. Sale price = 250 - 50 = 200.

Distance = Speed × Time = 60 km/h × 2.5 h = 150 km.

Time = Distance/Speed = 180 km / 60 km/h = 3 hours.

Speed in m/s = (distance in km * 1000) / (time in hours * 3600). Here, speed = (60 * 1000) / (1 * 3600) = 16.67 m/s, which rounds to 20 m/s.

Speed in m/s = (60 km * 1000 m/km) / (3600 s) = 16.67 m/s.

Time = distance/speed = 160 km / 80 km/h = 2 hours.

10% of 20 = 0.1 * 20 = 2 women representatives.

The circumference of a circle is given by 2πr. Here, r = 7 cm, so circumference = 2π * 7 = 14π cm.

Circumference = 2 * π * radius = 2 * 3.14 * 7 ≈ 43.96 cm.

Area = π * r^2 = π * 7^2 = 154 (using π ≈ 22/7).

Total parts = 2 + 3 = 5. Length of longer part = (3/5) * 25 = 15 units.

Total years served = 5 years + 5 years = 10 years.

Number of terms = 20 years / 5 years per term = 4 terms.

Members retiring every 2 years = 1/3 of 245 = 81.67, rounded down to 81. Therefore, 41 members can be elected every year.

If 245 members serve 6 years, then 245/6 = 40.83, approximately 41 members complete their term in a year.

Let the number be x. Then, x/3 = 5, so x = 5 × 3 = 15.

Let the original number be x. Then, x + 0.2x = 120, which gives 1.2x = 120, so x = 100.

Net change = (1.2x * 0.8) - x = 0.96x, which is a decrease of 4%.

Any number multiplied by 0 is always 0.

Number of women = 1/3 * 12 = 4. Therefore, number of men = 12 - 4 = 8.

Percentage = (5/15) * 100 = 33.33%.

26 weeks / 2 = 13 meetings in that session.

1/5 of 15 = 3 days for budget discussions, so 15 - 3 = 12 days are left.

1/3 of 90 = 30 days are reserved for discussions, so 90 - 30 = 60 days are left.

Days spent on discussions = 1/3 * 90 = 30. Days left = 90 - 30 = 60.

Seats needed = (545/2) + 1 = 273 seats.

Area = length × width = 10 cm × 5 cm = 50 cm².

Perimeter = 2 * (length + width) = 2 * (10 + 5) = 30 units.