Katrina is going to order sweatshirst for her girls mentoring group. The sweatshirts will have the group logo printed on the front. Katrina asks two local companies to gives he a price.
. MH Designs will charge $21.50 for each sweatshirt.
. Print Rich will charge $18 for each sweatshirt plus a one-time setup cost of $70
Justify how to determine the number of sweatshirst Katrina would need to order form each companny for the cost to be the same.