Radium decays exponentially; it has a half-life of 1,600 years. find a formula for the amount, q (t), remaining from 70 mg of pure radium after t years.

A circular ink spot has the circumference of 25.12 millimeters. A minute later, it has the circumference of 75.63 millimeters A. Estimate the diameter of the ink spot each minute B.

Lee Jenkins worked the following hours as a manager for a local Pizza Hut: 82,61,7 and 73 How many total hours did Lee work?

The temperature was 56°F at noon. If the temperature rose 13°F, what is the temperature now

A runner increases her speed from 3.1 m/s to 3.5 m/s during her last 15 seconds of great run. What was her acceleration during her big push to the finish?

Joshua receives a $70 gift card to use at a clothing store. he buys a pair of jeans for $36 and 8 pair of socks. he does not use the entire amount of the gift card. Write and solve an inequality to find s, the price of each pair of socks?

What is the missing constant term in the perfect square with x^2+6x

Which of the following is the inverse of F (x) if F (x) = x/22?

The sum of two numbers is - 1. When twice the first number and four times the second number are added, the sum is - 10. What are the two numbers?

A person in a certain family eats 622.2 lb of fruit and vegetables in a year, what is the consumption in one day? (use 1 year = 365 days)

Find the 66th term of the following arithmetic sequence. 5,14,23,32, ...