Final answer:
1 tube of glue costs $0.40 more than 1 roll of tape.
Step-by-step explanation:
To find out how much more 1 tube of glue costs than 1 roll of tape, we need to subtract the cost of 1 roll of tape from the cost of 1 tube of glue. The cost of 1 tube of glue is $2.39 and the cost of 1 roll of tape is $1.99. So, to find the difference, we subtract $1.99 from $2.39:
$2.39 - $1.99 = $0.40
Therefore, 1 tube of glue costs $0.40 more than 1 roll of tape.