Help 30 pts
plz no random answers!

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?

Icould really use some with this question.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g