Question: e . Copy the value of an int variable firstNum into an int variable tempNum. f . Swap the contents of the int variables x

e. Copy the value of an int variable firstNum into an int variable tempNum.
f. Swap the contents of the int variables x and y.(Declare additional variables, if necessary.)
g. Suppose x and y are double variables. Output the contents of x,y, and the expression x+12y-18.
 e. Copy the value of an int variable firstNum into an

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