The digits in the tens place of a two-digit number are 3 more than the digits in the unit place. If the digit at the unit place be ‘b', then the number is a) 11b + 30 b) 10b + 30 c) 11b + 3 d) 10b + 3

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

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?

What is the distance between point a and b