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The percent composition by mass of magnesium MgBr2 (gram formula mass= 184 grams/mole) is equal to... a- 24/184 x 100 b- 160/184 x 100 c- 184/24 x 100 d- 184/160 x 100
asked
Jun 26, 2017
Chemistry
high-school
2
answers
3
votes
44.6k
views
The price of a pair of shoes is $45.90. The sales-tax rate is 5 percent. How much sales tax do you need to pay?
asked
Dec 18, 2016
Mathematics
high-school
1
answer
1
vote
24.7k
views
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