write a simplified expression for the right half of the equation that can be used to find the nth term in the sequence . please i will make u waffles

In what form is the following linear equation written y=9x+2

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Jamie went to home depot. she bought 25 bags of soil that cost $9 per bag. she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each. she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jame pay at the end?