Given a=2, b=-5, c=0.5, d=-20 ... find abc, and 2d+10c
abc = 2 x -5 x 0.5= -10 x 0.5= -20 / 2= -10
2d+10c= 2(-20) + 10(0.5)= - 40 + 5= -35
JC
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