I think the 57 is an whole number.
Answer: 480 minutes or 8 hours
Step-by-step explanation:
24,000 ÷ 50 = 480.
It will take 480 minutes to fill the pool.
480 minutes ÷ 60 is also 8. So it will take 8 hours to fill the pool, or 480 minutes. Whichever one you want to use.
Hope this helps!
Answer:
1/15 ; 6/90
Step-by-step explanation:

= 180° - 50°
= 130°
the answer is 130°