WHATS THE RANGE PLZ HELP ME

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.

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?