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Marco Alfaro
Answers (2)
Class SimpleCalculator Public Static num add(num x, num y) num sum sum= x+y Return sum Public Static num sub(num x, num y) num subtract subtract= x- y Return subtract Endclass Class Calculator inheritsFrom SimpleCalculator // Declarations Private num num1
Answer is $1750.00 The marginal revenue by adding a send lawn mower is 70, the 70 * 25 dollars per acre of production.
