Answer:
19
Step-by-step explanation:
All numbers which start with a 3 are peachy: {30, 31, 32, 33, 34, 35, 36, 37, 38 and 39}
All numbers which finish with a 3 are peachy: {03, 13, 23, 43, 53, 63, 73, 83 and 93} (33 was included in the previous list)
There are 10 numbers in the first list and 9 in the second list. Therefore, there are 19 peachy positive 2 digit numbers
