Answer: Option B
Step-by-step explanation:
The formula for calculate the volume of a hemisphere is:

Where r is the radius:
The formula for calculate the volume of a cylinder is:

Where r is the radius and h is the height.
Therefore, the volume of the figure is the sum of the volume of the hemisphere and the volume of the cylinder.
Finally, knowing that the radius of the hemisphere and the cylinder is 6 inches and the height of the cylinder is 12 inches, you can substitute values. Then:

Answer:
the interest is about 29.78.
Step-by-step explanation:
assuming It is at 9% per year,
6150*0.09*25/31/12=
553.5*0.08065/15=
553.5*0.0538=
29.7783 which is about 29.78
1/6 + 2/3 + 1/4
1) Get the least common denominator
multiple of 6: 6, 12, 18, 24
multiple of 3: 3, 6, 9, 12
multiple of 4: 4, 8, 12
LCD is 12
1/6 * 2/2 = 2/12
2/3 * 4/4 = 8/12
1/4 * 3/3 = 3/12
2) Add the numerators and put the sum above the LCD.
2/12 + 8/12 + 3/12 = 13/12
3) Simplify the fraction.
13/12 is an improper fraction, it can only be simplified resulting to a mixed fraction.
13/12 = 1 1/12
1/6 + 2/3 + 1/4 = 1 1/12
You got these prime numbers from a factor tree you need to multiple them together to get 2475