. Suppose that : → is a function, and that ⊆ and ⊆ . a) Prove that ( ∩ ) ⊆ () ∩ () b) Prove that ( ∩ ) = () ∩ () given that is an injective map

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60