The numbers would be 1 and 6 you need to put the positive on the 6 and the negative on the 1 to get positive 5 when adding and -6 when multiplying
Hope this helps
If the two lengths are 7 and 3, then I believe the length of the hypotenuse would be approximately 7.62.
He spent 26.95 on each. It's just 80.85/3 =26.95