The original price was 100%. If 20% was taken off, 80% remains. So, he paid 80% of the original price. 80% is the same as 0.8.
Multiplying (8 x 6) by 0.8 will give the answer.
[tex](8 \times 6) \times 0.8\\=48 \times 0.8\\=38.40[/tex]
include the last zero because it asked for the answer up to two decimal places.
