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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

24.6k views

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