Bill's boss paid $20.05 for doughnuts for the office staff. The total included 1.30 cents for tax and $1.25 per doughnut. How many doughnuts did Bill's boss buy?

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?