Answer Key

One way to solve this is as follows:

  var sam = 28.32
  var edith = 18.75
  var katie = 21.61
  var kayla = 24.92

  var total = sam + edith + katie + kayla
  var tenPercent = total + (total * 0.10)
  var fifteenPercent = total + (total * 0.15)
  var twentyPercent = total + (total * 0.20)

  print("🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦")
  print(" Sam's bill:   28.32  ")
  print(" Edith's bill: 18.75  ")
  print(" Katie's bill: 21.61  ")
  print(" Kayla's bill: 24.92  ")
  print("🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦")
  print("Total: \(total)")
  print("10%: \(tenPercent)")
  print("15%: \(fifteenPercent)")
  print("20%: \(twentyPercent)")
  print("🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦🟦")

Remember: Your version doesn’t have to be identical!