In chemistry a mole is a unit of measure equal to 6.02x10^23 atoms of a substance. the mass of a single neon atom is about 3.35 X 10^-23 g. what is the mass of 2 moles of neon atoms?

Brady scoops pretzels from a bin into a bag at the store. The scale shows the weight of the pretzels to be 453. 6 grams. The pretzels cost $2.50 per 1/2 pound. How much will Brady pay for the pretzels?

What is 10.4 in a mixed number in simplest form

On the first day of June, there were about 15.01 h of daylight in a city. Five months later, there were about 9.60 h of daylight. What was the percent decrease?

Simplify (a^-2 b^2 / a^2 b^-1) ^-3

In the summer, Phill reads 3 comic books a week. A this rate, how many will he have read after eight weeks of summer?

Leah has three fewer than 4 times as many DVDs as Sonia has. Leah has 37 DVDs how many DVDs does sonia have

4x + 6 - 2x = 14 2x + 6 = 14 2x + 6 - 6 = 14 - 6 2x = 8 2x divided by 2 = 8 divided by 2 x = 4 what is the operation used to solve the equation?

Which choice correctly describes this event? I will roll a standard die and land on 0. A) Certain B) Likely C) Unlikely D) Impossible

1) A survey of favorite colors showed 198 people chose green, 212 chose blue, and 187 chose red. If 39% of the people surveyed are children, ABOUT how many people surveyed were children? (use a calculator - show all work!)

Clarence writes the number - 240 to represent the amount he owes his brother Joe. What numbers should Clarence use to represent the other amounts given above?