Jade and 3 friends were picking up garbage for a community service project. they collected 23.92 pounds of garbage from a vacant lot. each friend collected the same amount of garbage. how many pounds of garbage did jade collect?

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse