9
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20% off $45 20% equates to 20/100 so 20% of 45 = 45 x 20/100 = 9. 20% of $45 = 9 Therefore 20% off $45 = 45 - 9 = $36
20% off of 45 leaves 36.
(45/100)*20 OR 45*0.20 Which both results in 9 dollars
$45
45*.2 = 9 Since you want OFF 45lbs, 45-9 which is 36 So 20% off of 45lbs is 36lbs Hope this helped! :)