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Pls, im trying to determine the total relevant cost; and increase or decrease in profits as a result of purchasing the starters. Thanks? What is the form of the Difference of Squares identity? Algebra II. It needs to be simplified with steps and solution please.? If you weigh out 2.105 grams of sand / salt mixture and end up with 1.095 grams of dry sad what is the percent of sand in their original mix? Solve the laplace transform y"- 2y '+ y = e^-t , y(0)=0, y'(0)=1?