Iodine-125 has a half-life of about 60 days.

How many milligrams of a 500 mg sample will remain after 300 days?

1. 0.6 mg

2. 7.8125 mg

3. 15.625 mg

4. 31.25 mg

What is the value of 5.4 * 10^8

Jimmy does yard work around his neighborhood. In a given week he works at least two days, but no more than five. And on the days he does work, he earns at least three dollars per day, but no more than seventeen dollars per day.

An above ground swimming pool is leaking after hour the pool has leaked of a gallon of water how many gallons of water per hour is the swimming pool leaking

Mr. thompson has been asked to add storage space to a garage. he estimates 6 square feet per individual will be required to meet the needs of 12 people. if the storage space is 15% of the total amount of space required, how much total space does mr.

Subtract 45 from 16 raised to the 6th power; then multiply by 3.

How does the volume of a sphere with radius 2cm compare to the volume of a sphere with radius 1cm

6 yards to 36 yards. Find the percent of change. Round to the nearest tenth of a percent if necessary.

Mark, evan, and cayla are playing a game. there are 3 blue marbles, 2 red, and 1 green marble. if mark pulls a blue marble he gets $1. if evan pulls a red marble, he gets a $2. if cayla pulls a green marble, she gets $3.

How do you reduce 12/30 by 1/2

Maria's age of 17 years less than Orlando's age. The sum of their ages is 33 find their ages.