The digit in the thousands place is lower and than the digit in the ten thousands place
There is a 4/6 chance to roll a 2 or an odd number. These events are not mutually exclusive.
To find the average, add the cost of each book to get a total cost, then divide the total cost by the number of books purchased.
Total cost: 32 + 45 + 39 = 116
Average cost: 116 / 3 = 38.67
