If a/b is a rational number, what does b have to equal in order for a/b to also be an integer?

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?

Which of the following is the result of expanding the series

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show