Radium has a half life of 1660 years. If the initial amount of radium is 200 grams, how much will remain in 500 years?

If an object is propelled upward from a height of s feet at an initial velocity of v feet per second, then its height h after t seconds is given by the equation h=-16 t squared + vt+ s, where h is in feet.

what mass of water at 15 degrees celcius can be cooled 1 degree celcius by heat necessary to melt 185 grams of ice at 0 degrees celcius?

amy is shopping for a new couch. she finds one that she likes for $800, but her budget is $640. how much for a discount does she need in order to be able to afford the couch?

How do you find the quadratic equation of a parabola with the vertex and x intercept?

What is the anwer 8-4s=s+13

What is the value of the underlined digit of 28

What is the equation for 15% of 24

Bob is having a party and want to order some cake. there will be 57 guest and he wants to make sure that everyone gets a slice of cake. he wants to pay as little as possible for the cakes and for them to be the same size.

2w - 4 = 3w a w = - 4 b. w = 4 c. w = - 4/5 d. w=4/5

If your 10 feet away from a friend but you are a snail how long will it take you