Question: Carbon-11 has a half-life of about 20 minutes. If we start with 200 grams, how

much will be left after 3 hours?

A. 25 grams

B. 2.5 grams

C. 0.39 grams

D. 0.039 grams

Find the price per unit for each item, then choose the best buy. a. Bread, 16 ounce loaf for 96¢ would = per ounce. b. Bread, 32 ounce loaf for $1.75 would = per ounce. The best buy would be

How is the slope of a linear function related to the number of zeros for the function?

What is the x-intercept of the line with this equation - 2x+1/2y=18?

Tony and Ricky spend a certain amount of money from their accounts each week at a pet shelter. The table shows the relationship between the amount of money (y) remaining in Tony's account and the number of weeks (x) : Function 1: Number of Weeks (x)

Mallory is a pilot. Last week she flew the fallowing trips in miles : 2,020; 1,358; 952; 2,258; and 1,888. Which of the following is a good estimate of the miles mallory flew last week? A. 6,000mi B. 6,800mi C. 7,000mi D. 8,000mi

At a certain temperature, the speed of sound in the air is 330 meters per second. Which of the following proportions would be used convert this speed into kilometers per second?

Simplify (ac^4 / 3b^3) ^2

A box is 20 cm long. Which of these is closest to the length of this box in feet? (1 inch = 2.54 cm)

While shopping, you see a jacket marked down 20%. If the original price of the jacket is $175, what is the sale price of the jacket

Subtract the sum of - 11ab and - 23ab from the sum of - 19ab and 7ab