A contractor orders, say, 30 cubic yards of premixed concrete toconstruct a patio that is to be, say, four inches thick. The length ofthe patio is to be, say, twice the width. Write a program that promptsthe user to specify the amount of premixed concrete (in cubic yards)ordered, the thickness of the patio (in inches), and the ratio of lengthand width. The program then outputs the length and width of thepatio (in feet). (1 cubic yard = 27 cubic feet.) (To find the squareroot of a decimal number, include the header filecmathusing thestatement#include, in your program. The functionsqrt, includedin this header file, determines the square root of a decimal number.For example,sqrt(16.0) = 4.0.)

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Variables and Constant

Constants and variables are widely used in mathematical equations and expressions. They are also commonly found in the domain of programming, where each language has its own way to differentiate between a constant and a variable. Since they have all sorts of applications, knowing their differences is a good place to start.