which inequality models this problem? esin started a t-shirt-printing business. she spent $2500 to purchase supplies to get started and she uses about $4.50 worth of supplies per t-shirt printed. esin charges $25 for each t-shirt. let  s  represent the number of t-shirts.what is the minimum number of t-shirts esin will need to sell to make a profit?   25s< 2500+4.5s4.5s≥2500+25s4.5s> 2500+25s25s> 2500+4.5s