Me pueden ayudar plis :(

What is f(3) for the quadratic functionf(x)=2x2 + x – 12? f -3g 3h 6i. 9

What is the range for 31,39,29,34,37,24,36,33,34,28

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?