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Sodium burns in chlorine to form sodium chloride, NaCl. How many grams of sodium chloride will be formed when 2.3 g of sodium is burned in 2.5 g of chlorine?

The wholesale price of a TV is $540 and will be marked up by 35 percent. What is the retail price of the TV?

72 is what percent of 90?

Julian’s restaurant bill is $30, and he leaves a 15 percent tip. What is the total cost for Julian’s meal?

Christian and Jenna share a big cake. Christian eats 4/7 of the cake. Jenna eats half as much of the cake as Christian does. What fraction of the cake does Jenna eat?

The weight of a gold chainlet is measured to be 0.085N in air and 0.076N when immersed in water. Find its density.

Which is bigger 20% or 8/45 ?

How many seconds are in 17 hours?

A blueberry bush uses energy from the Sun to make carbohydrates. Which set of energy transformations BEST describe this process?

What is greater 0.09 or 0.1 or 0.0999