7.0 L of a gas at -23 degrees Celsius expands to a volume of 21.0 L. What is the resulting temperature in degrees Celcius? Record your answer to 3
digits followed by the words degrees Celsius. Ex: 542 degrees Celsius. *

due end of day pls help

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation: