Use your result from Part C and the binomial probability formula (nCx)(P^x)(Q^n – x) to find the probability of rolling a 4 exactly 3 times out of 10 rolls of a number cube. Express your answer as a percent rounded to the nearest tenth.

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.