After the release of radioactive material into the atmosphere from a nuclear power plant at
Chernobyl (Ukraine) in 1986, the hay in Austria was contaminated by iodine-131. Iodine-131 has
a half-life of 8 days.

Cass decided to sell game programs for the hockey game. the printing cost was over 20 cents per program with a selling price of 50 cents each. cass sold all but 50 of the programs, and made a profit of $65. how many programs were printed? letting p represent the number of programs printed, set up an equation that describes this situation. then solve your equation for p.

Ineed if you could explain and give me the answer you! this needs done

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.