Me ive been stuck on there for 20 mins

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

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 jamie pay at the end?

Find the value of x. give reasons to justify your solutions! l, m ∈ kn