What is avogadro's number equal to?

a. 6.02 x 1023

b. 8.02 x 1023

c. 60.02 x 1023

d. 62.02 x 1023

Ruby red paint costs $0.50 per square inch. A ball is painted ruby red and costs $100.00 to paint. What is the diameter of the ball? Round to the nearest tenth of an inch ... A. 4.0 in ... B. 5.6 in ... C. 8.0 in ... D. 16.0 in.

Find the least common multiple of 6n and 8c

Anita rode her bike for 5.3 kilometers. if she rode her bike 1hour, what would her average speed in kilometers per hour?

Luis wants to buy a skateboard that usually sells for $79.74. All merchandise is discounted by 12%. What is the total cost of the skateboard if Luis has to pay a state sales tax 7.25%.

Cable TV service costs $1,020 per year. Joaquin estimates that the rates go up by $60 each year. The expression below represents the total amount of money spent on cable TV for the next 10 years.

Caroline baked bread each day for 5 days for a bake sale. She baked 3 types of bread each day and used 2 cups of flour for each recipe. How many cups of flour did Caroline use?

Find the mean and standard deviation of each data set. Round to the nearst hundredth. 1. 4 8 5 12 3 9 5 2

Julia needs to cut 4 pieces of yarn, each with the same length and a piece of yarn 7.75 inches long let x represent the length of each of the equal pieces of yarn that Julia decides to cut.

Write the recurring decimal 0.4 as a fraction in its simplest form.

80 is 32% of what number