Whats this .You purchased 4 CD’s for $ 60 What is the cost of 1 CD ? and whats 3/8 X 1/4 = and 3/5 divide it by 1/3 =

answer pls on all 3 of them PLEASE
NEED HELP

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?

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

Find the domain and range of the following function f(x) = 51x - 21+ 4