1. The half-life of the radioactive element krypton-91 is 10 seconds. If 32

grams of krypton - 91 are initially present, how many grams are present

after 30 seconds? Show the decay function. Use A = A0ekt

Nancy's high school played 32 foot ball hes this year, 2 of the games were played at night. She attended 10 games. How many football games did Nancy miss?

Your weekly wage is $400 a month what is your annual wage

Write the following equation set equal to zero and in factored form. (x - 2) (x - 3) = 2 (x - 1) (x - 4) = 0 (x - 2) (x - 3) = 0 (x - 4) (x - 5) = 0

Serena is making a model of the Egyptian pyramid. The square base has sides that are all 4.6 in. Each of the triangular faces has a base or 4.6 and a height of 4 in. How much paper would it take to cover the entire pyramid

Jackie bought a 3-pack of tubes of glue. She used 0.27 ounce of the glue from the 3-pack and had 1.35 ounces left in total. Which describes a way to determine the number of ounces sold in each tube of glue? Solve for x in the equation 3x - 0.27 = 1.

If you draw a card from a regular deck of 52 cards, what are the chances that your card would be red? A heart? A queen? The queen of hearts?

What the best representation of 7/15

Which is greater 1/2or 3/8?

Write each mixed as a decimal. a) 1 3/4 b) 2 13/20

leonardo recorded his speed while skateboarding and determined he was traveling 18 feet per second. how many feet could he travel in one minute