Well you have to go by 24x3 and that equals 72 miles
I think it’s -6 but I would check with someone else too lol
6 books at $ 8 = (6 * 8) = 48
if he got a discount of 20%, then he paid 80%
0.80(48) = 38.40 <== what he paid
I'm pretty sure it's 22%
If it's not, then I'm sorry!!
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