Answer: There are 18 scarves which he can make.
Step-by-step explanation:
Since we have given that
Number of balls Christopher bought = 12
From of a ball, he can make 1 scarf.
So, from 12 balls , number of scarves he can make is given by
Hence, there are 18 scarves which he can make.
Answer:
x > 4
x + 2 > 6
-2 -2
Let <em>f(x)</em> be the sum of the geometric series,
for |<em>x</em>| < 1. Then taking the derivative gives the desired sum,