Hello there, and thank you for posting your question here on brainly.
Answer in short: 5
Why?
What I do for solving these types of problems is adding how much 1 apple is (0.88) until I get past $6, and then count how much 0.88s I added by. You can add 0.88 by itself one time, then add it by 1.76, then by 2.64, etc etc. Keep the cycle going, and you eventually get to a number until you can't add any more. You will be spending $5.28, and have $0.72 left.
Hope this helped! ☺♥
