What is the value of n in this equation 1/2 (n - 4) - 3 = 3 - (2n + 3) A. n = 0
B. n = 2
C. n = 4
D. n = 6

The sum of two numbers is 86, and their difference is 20. find the two numbers

Find the pattern and use it to list the nth term in the sequence. 6, 12, 20, 30, 42, 56, the nth term of the sequence is

Ammonia molecules have three hydrogen atoms and one nitrogen atom. how many of each atom arein five molecules of ammonia