Answer:
56.55 ft.
Step-by-step explanation:
Circumference

For this case:
r = 9
Thus:

rounded to the nearest tenth we have
C = 56.55 ft.
Answer:
12
Step-by-step explanation:
Quadrilateral the word that describe the equal share of 4 equal sides
The ratio is:
Chlorine : Water = 1 : 10
m ( Water ) = 15 ounces
m ( Chlorine ) = x
x : 15 = 1 : 10
10 x = 15 * 1
10 x = 15
x = 15 : 10
x = 1.5 ounces
Answer:
We need to add 1.5 ounces of Chlorine for the correct ratio.