URGENT Martina had a bag of gold coins. She gave ⅛ of them to her mother and then gave ½ of what was left to her brother. She then gave 2/7 of what was left to her father. If she then had 25 coins left, how many did she have originally? ( please show work posting again because I need to know fast)

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.

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr