Anybody know the answer to any of these

3(10x-y)-5(x-y^2) need this solved asap

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?

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?