what is the answer of 15.5 double
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6% of 155= 6% * 155= 0.06 * 155= 9.3
5 goes into 155 evenly. 155/5 = 31
Well, 0.20*155 is 31, and 155-31=124, therefore 20% off of $155 is $124.
Cos(-155) = cos(155) = 1 - cos(180-155) = 1-cos(25).
5. 155/5=31