The daily newspaper stand had began with 87 copies.
Nothing changes if you don't add anything.
Example:
10+10=20
20+0=20
nothing changes.
Answer:

Step-by-step explanation:
Notice that we are in the presence of an arithmetic sequence (there is a common difference of 6 between a term and the next). So thisis an arithmetic sequence with first term
. and common difference "<em>d</em>" = 6.
Recall now the formula for the nth term (
) of an arithmetic sequence:

Then, using our values in the formula, we get:
