You get internet service for a flat rate of $ 16.95 per month regardless of the number of minutes that you spend online. the table shows an example of some cost data

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.

When y’all answer can y’all explain too !

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?