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Answers by Astrid

Answers by Astrid
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Working alone, Jack can do a puzzle in 5 hours. With his brother's help, the two can do the same puzzle in 2 hours. How long would it take Jack's brother to do the puzzle alone?
answered Mar 25, 2021
3 votes
41.6k views
PUNCTUATION: 2. Filled with tourists the Queen Sun set sail fortunately, without incident for St Kitts how do I punctuate this sentence
answered Jan 27, 2021
1 vote
189k views
A compound is 24.7% calcium, 1.2% hydrogen, 14.8% carbon, and the rest is oxygen. Write the empirical formula and name the compound.
answered Oct 10, 2020
6 votes
97.5k views
An urn contains one white chip and a second chip that is equally likely to be white or black. A chip is drawn at random and returned to the urn. Then a second chip is drawn.What is the probability that
answered Aug 7, 2020
1 vote
183k views
Maria wants to create a simple logo for her new flower shop. She would like to use the computer to create this logo. Maria should use ____
answered Jul 4, 2020
0 votes
60.8k views
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