Answer:
#1 should be -22/7
Step-by-step explanation:
A. (-1,-2)
Because:
x + y = -3
-1 + (-2) = -3
-3 = -3
x - y = 1
-1 - (-2) = 1
-1 + 2 = 1
1 = 1
The answer is 3 days. My work is in the pic in case you need it
We know, Volume of a Sphere = 4/3 πr³
v = 4/3 * 3.14 * 18³
v = 4.186 * 5832
v = 24,416.64 cm³
Volume of a Sphere = 4/3 πr³
v = 4/3 * 3.14 * 12³
v = 4.186 * 1728
v = 7234.56 cm³
Difference = 24,416.64 - 7234.56 = 17182.08
In short, Your Answer would be: 17182.08 cm³
Hope this helps!