A tube of circular section has a nominal length of 52 cm ± 0.5 cm, an outside diameter of 20 cm ± 0.04 cm, and an inside diameter of 15cm ± 0.08 cm. Determine the uncertainty in calculated volume.

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

Arectangular garden measures 5m by 7m. both dimensions are to be extended by the same amount so that the area of the garden is doubled. by how much should the dimensions increase, to the nearest tenth of a metre?