Rewrite 7 − 8 using the additive inverse and display the new expression on a number line. 7 + (−8) A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 7. A red arrow begins at 7 and ends at negative 1. 7 + 8 A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 7. Another blue arrow begins at 7 and ends at 15. 7 − (−8) A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 7. Another blue arrow begins at 7 and ends at 15. 8 − 7 A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 8. A red arrow begins at 8 and ends at 1.

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

answer: y=0 if that is what u r looking for

$15.40 per mile

step-by-step explanation:

you have to round up to 4 because 6 is over 5 so you have to round the 3 up to 4