A banana peel weighs one-eighth the total weight of a banana.
If a banana with a peel balances a banana of the same weight without a peel plus seven-eighths of an ounce, how much does a banana weigh with the peel?

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made. determine an equation to model his situation?

What is the surface area of the sphere?