Section: Mathematics

28) Apples cost $x a bag for the first 100 bags a store buys from a wholesaler. All bags bought in addition to the first 100 get a discount of 10%. How much does it cost to buy 150 bags of apples from the wholesaler?

1. $100
2. $140x
3. $145x
4. $150x
5. $100x + $50