Answer:
[tex]P=\frac{1.18\cdot86\cdot1.06}{4}[/tex]1) Gathering the data:
Jonah and his 3 friends = 4 people
Bill = $86 (no tax)
Tip = 18% of $86 (1.18)
Sales Tax = 6%
Total amount =?
2) Let's calculate the Tip (18% over the Cost)
1.18 x 86=101.48
3) Let's calculate how much they'll pay with tax
101.48 x 1.06=107.57 (rounding up)
Dividing by 4 : 107.57 : 4 = $26.89
4) Expression:
[tex]P=\frac{1.18\cdot86\cdot1.06}{4}=26.89[/tex]