Answers by Mark McClelland
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Answers by Mark McClelland

Answers by Mark McClelland
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Austin has $5 more than Mark. If Mark has Δ dollars, write an expression for the amount of money Austin has.
answered Oct 10, 2018
3 votes
165k views
On a molecular level, explain how pure water can act as both an acid and a base.
answered Aug 3, 2018
5 votes
54.6k views
Between 1820-1860, which two issues dominated United States politics? a. Trusts and economic growth b. National security and law c. The environment and states' rights d. Westward expansion and slavery
answered Mar 2, 2018
5 votes
99.6k views
Each school year, seventh graders who study Life Science participate in a in a special field trip to the city zoo. In 2010, the school paid $1260 for 84 students to enter the zoo. In 2011, the school paid
answered Jun 28, 2017
2 votes
144k views
Simplify 4+3[5-4 divided by(12-10)]
answered Mar 21, 2017
0 votes
154k views
“Na2SO3” represents sodium sulfite.What does the 4 mean in the formula 4Na2SO3?
answered Jan 8, 2017
2 votes
181k views
Write the ratio in its simplest form. 1.4/7
answered Oct 11, 2016
1 vote
10.2k views
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