Nine friends are splitting a 2-pound bag of candy. If they each get the same amount of candy, how much does each friend get?, plz help

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.)

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?