Answer:
-7
Step-by-step explanation:
You can create and solve a proportion to get this answer.
Let x be the number of litters in 2500.
1. Write out proportion. 1/1000=x/2500
2. Cross Multiply. 1000x=2500
3. Divide by 1000 on each side. x=25
49 pieces because 7/8 is equivalent to 49/56. If each piece is 1/56, then there 49 of them.