There were 560 T-shirts at a boutique. ³₈ of them were without collars. T-shirts without collars were priced at $8 each. T-shirts with collars were priced at $5 each. The boutique owner sold ¹₃ of the T-shirts without collars and ⁴₅ of the T-shirts with collars. How much did he collect from all the T-shirts he sold?
Number of T-shirts = 8 u

8 u = 560

1 u = 560 ÷ 8 = 70

Number of T-shirts without collars
= 3 u
= 3 x 70
= 210

Number of T-shirts without collars sold 
= ¹₃ x 210
= 70

Number of T-shirts with collars
= 5 u
= 5 x 70
= 350

Number of T-shirts with collars sold
= ⁴₅ x 350
= 280

Amount that the boutique owner collected from the sale of the T-shirts without collars
= 70 x 8
= $560

Amount that the boutique owner collected from the sale of the T-shirts with collars
= 280 x 5
= $1400

Total amount that the boutique owner collected from all the T-shirts he sold
= 560 + 1400
= $1960

Answer(s): $1960