Answer:
$25.17
Explanation:
oh boy. mAth and typiNG.
SO, first, find 1% of 21.89 (move the decimal point to the left twice.) That gives us 0.2189.
If she wants to tip 15%, multiply 0.2189 by 15. That means she tips $3.2835. Of course, you round it to $3.28. Because we are finding the total, you add $3.28 to her bill of $21.89. (21.89 + 3.28 = 25.17)
Finally, that means she pays $25.17 in total.