An isotope has a half life of 94 years. How much of a 18 gram sample is left after 200 years?

a farm has only chickens and cows on it for a total of 145 animals l. however there are only 324 animal legs. write a system of equations that models this.

A bag contains 5 red marbles, 3 blue marbles, 7 yellow marbles, and 2 green marbles. Which ratio can be used to compare the red marbles to the blue marbles?

What does " mean in 7x"-21

The sugar sprinkles package

An 8% sales tax is applied to a $300 purchase in Texas. What is the total price with tax

Tony plans to deposit $1,000 at the end of each of the next three years. if his funds earn 5% compounded annually, how much will he have at the end of three years?

It is believed that the minimum number of calories required for the average female to avoid starvation is 1200 calories. The brain requires about 12% of the calories. How many calories does the brain require?

Moshe is playing cards and is grouping the cards that have already been played by suit (hearts, clubs, diamonds, and spades). Moshe is using what type of encoding?

A bag with 26 tiles with the letters A through Z. Find the probability of drawing two vowels with replacement

The floor at a roller skating rink is 72.25 feet long and 51.5 feet wide. How much longer is the rink than it is wide? A 671.0 ft B 67.10 ft C 21.25 ft D 20.75 ft