I found a rock that contains 1g of radioactive Radium (half-life = 1600 years). I measure that 15g is no longer radioactive. How old is my rock?

Describe the likely-hood of " your hair will grow 5 inches in one day

A red, a green, and a pink backback are hanging on hooks in the ckassroom. The total weight of the three backpacks is 32 pounds. The red one weighs 9 3/4 pounds. The green one weighs 1 3/4 pounds more than the red one.

Friendship bracelets sell for $7 each how much will it cost to buy 5 friendship bracelets? What is the relationship?

The expression below is a sum of cubes. 64x3 + 125 O A. True O B. False

A 13 foot ladder is leaning against the wall. If the top of the; adder slips down the wall at a rate of 2 ft per seconds, how fast will the foot be moving away from the wall when the top is 5 feet above the ground

A den has a circular rug. According to a small tag, the rug has an area of 50.24 square feet. What is the rug's diameter? Use 3.14 for .

Apply the distributive property to factor out the greatest common factor. 9+12n

Find the Four consecutive integers whose sum is 116.

Ten times the sum of half a number 6 is 8

Charles sold $800,000 worth of real estate last month. His commission for the month was $16,000. what rate of commission discharge received