A group of k elements can be chosen from a group of n elements in

ways.

The answer is B. 495.
Answer:
An equation would be 24 - 14 = n. Another one you could write would be 14 + n = 24. The answer is 10 for the amount of old trees.
Area of decagon is given by:
Area=1/2(nsr)
where:
n=number of sides
s=side length
r=height
thus the area will be given by:
Area=1/2(10*4*6.2)
Area=124 cm^2
Answer:
i believe the answer is a. There are no solutions to the system because the equations represent parallel lines.
Step-by-step explanation: