What's the molar mass for N2O5

During a senate campaign, a volunteer passed out a "Vote for Shaw" button. According to the catalog from which the button was ordered, it has an area of 78.5 square centimeters. What is the button's radius? Use 3.14 for pi .

Estimate 137 638+52 091

Fifteen is increased to 27. What is the percent of change? A. 55.6% B. 37% C. 44.4% D. 80%

Compare the quantity in column A with the quantity in column B. Choose the best answer. 73,56,88,94,100,87,92,100,78 A. The quantity in column A is greater. B. The quantity in column B is greater. C. The two quantities are equal. D.

Find (12y-1) + (-10y+7)

Mr. jacobs wanted to purchase a pair of pants. he only had 25.00. When he arrived at the store he saw a sale sign that read 1/4 off at of 40.00. Does Mr. jacobs have enough money to purchase the pants? show your work.

How many cubic blocks of side length 1/7 inch would it take to fill a cube with a side length of 3/7 inch?

Write a world problem that can be solved by drawing an array. then draw the array and solve the problem

If I Have 55, then times that by three then divide it by 9, then add 16, What Is My Answer?

Cheese sticks that were previously priced at "5 for $1" are now "4 for $1". Find the percent increase in the price per cheese stick.