An ore sample contains 2,000 milligrams of a radioactive material. It has a half life of 1 day. This means that each day, the amount of material is one half of what it was the day before. How much will be in the sample on the eighth day?

Which expression is equivalent to 12 (2+3x-6) ? 3x-5 3x-4 32x-5 32x-2

If a plane was for $3,950,000 then how many months do I have to make the bill $1 per month?

Amanda has 60 minutes to complete 35 math probelms. She has already completed 20 math problems in 30 minutes. How much longer will it take for her to finish the last 15 math problems. Write an inequality and solve

Twenty is what percent of 400? 5% 80% 40% 20%

Jana is ordering a list of numbers from least to greatest. StartRoot 7 squared EndRoot, StartRoot 7 EndRoot, Four-fifths, StartRoot 0.8 EndRoot, (StartRoot 5 EndRoot) Squared Which statement can be used to create her list? A: StartRoot 0.

A standard six-sided die shows a number, 1, 2, 3, 4, 5, or 6, on each of its sides. You roll the die once. Let E be the event of rolling the die and it showing an even number on top and L be the event of rolling a number less than 4.

At the malt shop a large chocolate shake takes 0.2 of a pint of milk. If a medium shake takes 0.7 the amount of a large, how much does the medium shake take?

Tuition fees $3000 twice a year

9. A large box of nails weighed 8 2 ounces. A small box of nails weighed 3 ounces. How much more does the large box weigh than the small box?

Robbie found a square digital relief map on a Web site. The map contained 160,000 pixels. How many pixels high is the map?