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The result of the equation - 130 plus 80 plus 40 plus 80, is found as follows;130 + 80 + 40 + 80= ( 130 + 80 ) + 40 + 80= 210 + ( 40 + 80 )= 210 + 120= 330Answer = 330
40+40 = 80 and 40*40 = 1600
80 is 40% of 200
80
Decrease by 40% => multiplier = 1 - 40/100) = 0.60So the answer is 80*0.6 = 48.