A plane flew 3000 km from Calgary to Montreal with the wind in 5 hours. The return flight into the wind took 6 hours. Find the wind speed and the speed of the plane in still air.

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

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.

In which form is the following function written? y = - 2(x – 3)(x + 5)