A 2010 Padilac Escalate for 39000 which depreciates at 22.5% per year. What is the Equation?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Write each fraction as an equivalent fraction with a denominator of 120then write the original fractions in order from samllest to largest

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.