Simplify (7x^3+7x^2-4)+(x^3-5x^2-3x+8). Choose the standard form of the answer.

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?