Answer:
Adam's total cost: $9.20
Cindy's total cost: $9.20
Explanation:
Since Adam and Cyndi's total bill costs $16, evenly splitting the cost means that each of them has to pay $8, not including the tip.
To find out the dollar value of their 15% tip, multiply $8 by 0.15:
$8 × 0.15 = $1.20.
Adam and Cindy will have to pay $8 (lunch cost) + $1.20 (tip) = $9.20 separately.