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Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

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?