Answer:

Step-by-step explanation:

= [
-
] ← evaluate for upper limit - lower limit
= (
-
) - (
-
)
=
- 8 - 9 + 
=
- 17
= 
1 day use 4 bags
? day use 1/2 bag
Cross multiply
(1•1/2)/4= 1/2•1/4= 1/8 of the day
In 1/8 of the day 1/2 of bag of milk will be used.
Answer:
13.5
Step-by-step explanation: