He half-life of the radioactive element unobtanium dash 43 is 5 seconds. if 80 grams of unobtanium dash 43 are initially present, how many grams are present after 5 seconds? 10 seconds? 15 seconds? 20 seconds? 25 seconds? the amount left after 5 seconds is nothing grams.

Use set buikder notation to represent the following set: {, -2, -1, 0}

Determine the volume of a cylinder bucket if the diameter is 8.5 in. and the height is 11.5 in.

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.