answer: $34.31
step-by-step explanation:
$11.99 x 3 = $35.97
$35.97 - 10% = $32.37
$32.37 + 6% = $34.31
4 and 5)16.97 or 12√2
6)15.59 or 9√3
7)y = 15.59 or 9√3 x =27
8)17.80
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