Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.
logan wrote a business plan for an entrepreneurship class, and now he has to make bound copies. logan could use a printer who charges a setup fee of $42 and $4 for every copy printed. another possibility is to go to the office supply store, where he could pay an up-front fee of $30 and $8 per copy. there is a certain number of copies that makes the two options equivalent in terms of cost. how many copies is that? how much would the copies cost?
for , the cost is $