Answer:
D
Step-by-step explanation:
Answer:
3^3 * 7^r has (3 + 1)*(r + 1) = 16 factors.
So r must be 3.
Answer:
4.09 m
Step-by-step explanation:
Let the length of the shadow cast by a person be x m.

Answer:
She shaded area?
12 x 10 = 120
6 x 7 = 42
42 divided by 2 = 21
Now we subtract both areas:
120 - 21 = 99 of the shaded region.