- 15+3=1218?

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(x^4) + (ax^3) + (bx) + c divided by (x-1) and (x+1) and (x+2) the remainders are 14, 0, -16. Find values of a, b, c? In 56 g of Na2SO4, how many moles of electrons? SO2 (g) + O2 (g) →2 SO3 (g) ΔHorxn = -197.78 kJ/mol, ΔSorxn = -188.1 J/mol∙K. Calculate ΔGorxn for this reaction.? Is this true ?
http://www.newsweek.com/how-will-world-end-another-doomsday-looms-here-what-could-actually-bring-714437? Find the perimeter and area for a rectangle that is 30 inches long and 29 inches wide?