Can anyone please help me with this question!!

Which system of linear inequalites is represented by the graph?

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

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