QUICK SOLVE a radio station has three types of promotional items: cds, hats and flying discs. cds are worth $4.50, hats are worth $3.25 and flying discs are worth $1.25. they have given away 11 cds, 26 hats and 53 flying discs. organize the information using matrices. then use matrix multiplication to find the station's total cost for promotional items.

write matrix equation and solve it by hand.

edit: bump, please answer!