An athletic director pays $90 for 12 sun visors for the softball team. how much will the athletic director pay to buy 15 more sun visors?

An athletic director pays $90 for 12 sun visors for the softball team. The rate per sun visor is equal to $90 / 12 sun visor = $ 7.5 per sun visor. So the athletic director should pay ($ 7.5 per sun visor) * (15 sun visor) = $ 112.5