Which of the following is the correct boolean expression to test for: int x being a value between, but not including, 500 and 650, or int y not equal to 1000? Select one: a. ((x > 500 AND x < 650) OR !(y.equal(1000))) b. ((x < 500 && x > 650) || !(y == 1000)) c. ((x >= 500 && x <= 650) && (y != 1000)) d. ((x > 500 && x < 650) || (y != 1000))

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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.