If (x) =4x+5, what is the value of f(-3)​

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.

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.