(c) A room is 12m long, 10m broad and 4.5m high. It contains a door of size Im x 3m and
two windows of size 2m x 1.5m each. Find the area of the four walls of the room
excluding the door and windows.

The graph of which equation includes the points (0, 10) and (10, 11)? y = 10x + 11 y = x + 10 y= 1/10x + 10 y = 1/10x + 11

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?