Find the slope. NEED HELP ASAP PLEASE

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?

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Is a square always, sometimes, or never a parallelogram