Rachel needs to print some of her digital photos. She is trying to choose between Lightning
Fast Foto and Snappy Shots. Lightning Fast Foto charges a base fee of $5 plus an additional
$0.20 per photo. Snappy Shots charges a base fee of $7 plus an additional $0.10 per photo.
Determine the number of photos for which both stores will charge the same amount. Explain
which store Rachel should choose depending on the number of photos she needs to print.