The lines on a 2 cup liquid measuring cup divide each cup into eighths. If you measure 1 cups of water, between
which two quantities can you be certain that your exact measurement will be?

The 4rth line and 5th line

Step-by-step explanation:

This 2 cup measuring cup with 8 division lines

8th line    2 cups

7th line

6th line

5th line

4th line     at this line 1 cup

3rd line

2nd line

1st line  

1 cup is between the 7th and 9th lines from the bottom.

Step-by-step explanation:

The bottom of the cup has no line and corresponds to 0 eights.

1st line up: 1/8 cup  

2nd line up: 2/8 cup    this is also called 1/4 cup

3rd line up: 3/8 cup

4th line up: 4/8 cup     this is also called 1/2 cup

5th line up: 5/8 cup

6th line up: 6/8 cup     this is also called 3/4 cup

7th line up: 7/8 cup

8th line up: 8/8 cup     this is also called 1 cup

9th line up: 9/8 cup

10th line up: 10/8 cup    this is also called 1 1/4 cup

11th line up: 1 3/8 cup

12th line up: 1 4/8 cup     this is also called 1 1/2 cup

13th line up: 1 5/8 cup

14th line up: 1 6/8 cup    this is also called 1 3/4 cup

15th line up: 1 7/8 cup

16th line up: 1 8/8 cup    this is also called 2 cups

1 cup is between the 7th and 9th lines from the bottom.

go on the tube you might find some information there

it would take 7/10 of an hour too fill the pool.

step-by-step explanation: