Michael purchased a $209,000 home with a 30-year mortgage at 5.45%. If makes a $1400 monthly mortgage payment, how many months early will he pay off his mortgage

With #! i’ve tried to figure it out but i can’t.

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 value of x is in the solution set of 4x – 12 s 16 + 8x?