There were 80 T-shirts at a boutique. ³₄ of them were without collars. T-shirts without collars were priced at $7 each. T-shirts with collars were priced at $3 each. The boutique owner sold ⁵₆ of the T-shirts without collars and ³₅ of the T-shirts with collars. How much did he collect from all the T-shirts he sold?
Number of T-shirts = 4 u

4 u = 80

1 u = 80 ÷ 4 = 20

Number of T-shirts without collars
= 3 u
= 3 x 20
= 60

Number of T-shirts without collars sold 
= ⁵₆ x 60
= 50

Number of T-shirts with collars
= 1 u
= 1 x 20
= 20

Number of T-shirts with collars sold
= ³₅ x 20
= 12

Amount that the boutique owner collected from the sale of the T-shirts without collars
= 50 x 7
= $350

Amount that the boutique owner collected from the sale of the T-shirts with collars
= 12 x 3
= $36

Total amount that the boutique owner collected from all the T-shirts he sold
= 350 + 36
= $386

Answer(s): $386