Answer:
1/4
Step-by-step explanation:
To transform PQR into P'Q'R, dilate the preimage by 1/4, or shrink it by a scale factor of 4 because 3/12 = 1/4
The surface area of a sphere is

where r is the radius;
The circumference is

so that

using this value we can evaluate the surface area of 1 ball as:

For 100 ball you get:
C. 523.33
the formula is 4/3*3.14*r^3
R being radius (:
Answer:
The answer might be c
Step-by-step explanation:
<span>The number 80 is <span>25%</span> of <span>320</span></span>