<span>19,200 units --------------------------------at a total cost of $67,585.06
therefore one unit
</span>67,585.06/19200=$3.5200552
the answer is the letter <span>D. 3.52
</span>
the cost per unit is $3.52
10 because first brackets is 0 second brackets is 10 15*0 is 0 0+10 is 10
Answer: 1/4
Step-by-step explanation:
We can actually write an equation to find what should be added to get -1.

We get this equaiton because the problem asks what should be added to -5/4 to get -1. We put x in place to see what number fits. X is being added to the -5/4.



Answer:
about 63.1%
Step-by-step explanation:
For the first song, it is certain it isn't a duplicate. For the second song, the probability that it is not a duplicate is 4999/5000. The probability the third song is not a duplicate is 4998/5000.
Hence the probability that none of the 100 songs is a duplicate is ...
5000!/4900!/5000^100 ≈ 0.369120
Then the probability that one or more is a duplicate is ...
1 - 0.369120 ≈ 0.630880
Answer: 89
Step-by-step explanation: 8 x 11 + 1 = 89, 7 x 12 + 5 = 89, 15 x 5 + 14 = 89