For your science class, you have to build a miniature model of the polar bear habitat at the zoo. after talking with the zookeepers, you learn that the habitat is 20 feet long, 15 feet wide and 25 feet high. you are going to design your model so that its linear dimensions are 20 times smaller than the actual habitat. what is the height of your model (in inches)? [12 inches in 1 foot]

12 in

9 in

25 in

15 in

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

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?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.