Aparcel of air, with less than 100% relative humidity, that is rising because of heat energy derived from the surface is stable. unstable. conditionally unstable.

The amount of energy it takes to lift a box might be a function of which of the following

The parabola opens: y=√x-4 (principal square root) up down right left

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.