No she doesn't have enough money. All you do is multiply 8.60 by .2 which come out to 1.72 and 8.60 plus 1.73 which equals 10.33 so she needs 33 more cents tone able to tip 20%.
Please upload the question and i will work it out, have a lovely day!
Answer:
13/100 + 11/10 = 123/100
Step-by-step explanation: