Radium-226 is a metal with a half-life of 1600 years. If you start with 1 kilogram of radium-226, how much will remain after 20,000 years?

Lyn drew this bar model to solve a problem. What operation should she use to find the unknown numbers number

In a trapezium a=7. b=10.4. and h=6.7 what is the area of the trapezium

A local produce shop has a fixed monthly operating cost of $500. The veggies they sell cost the company an average of $2.50 per pound to grow, harvest, and bring to the shop.

Negative one-half x + 3 = 4 minus one-fourth x

Area 26 square yards and length is 5 yards what is the width

A rescuer on a helicopter that is 50 feet above the sea drops a lifebelt. The distance from the lifebelt to the sea can be modeled by the equation below, where h (t) represents the lifebelt's height from the sea at any given time, t is the time in

The sum of two numbers is 59. The larger number is 19 more than the smaller number. What are the numbers?

Gamma rays have a ___ charge -1 0 +1 +2

On a typical day flights at a local airport arrive at a rate of 10 every 15 minutes. At this rate how many flights would you expect in 1 hour?

A proffessional baseball team won 84 games this season. The team won 14 more games than it lost. There were no ties. How many games did the team lose? How many did it play?