Suppose 2kg of a radioactive substance decays to 250g in 75years. what is the half-life of the substance?

If 8 degrees dropped 10 degrees and midnight what is the temperature?

On Friday it snowed 3 2/7 inches. On Saturday it snowed 2/7 inches. How much more did it snow on Friday then Saturday? A. 3 2/7 inches B. 3 2/14 inches C. 3 6/7 inches D. 3 6/14 inches

D. The sum of two numbers is 30 and the difference of these numbers is 6. What are the two numbers?

Kelly has 24 dimes and quarters worth $3.60. How many quarters does she have?

the side of a cube is doubled from it original length. what is the ratio of the volume from the samller cube to the bigger cube

Ab/2 at a = 1/2, b = 8

The football club sold bags of candy and cookies to raise money for the spring show. Bags of candy cost $6.00, and bags of cookies cost $4 , and sales equaled $40 in total. There were 3 more bags of cookies than candy sold.

Charlie bought an airplane ticket for $288.00. The tax on the ticket was 7.5%, and he had to pay an additional $26 in fees. Which of the following shows how much Charlie will pay in total?

Solve the equation using inverse operations. 18 = 2/5 y Enter your answer in the box. y =

What is x if 24x + 3 = 9