Answer:
Amy can create 1,000 flyers if she spends all $20 only on black-and-white flyers.
Explanation:
The total budget for making flyers is $20.
The cost of making a black-and-white flyer is $0.02.
The cost of making a colored flyer is $0.10.
If she spends the whole amount on making black-and-white flyers, it means zero colored flyers will be created.
Total number of black-and-white flyers will be
=Total budget/cost of making a black-and-white flyer
=20/0.02
=1,000
So, 1000 units of black-and-white flyers can be created by spending $20.