Plzz anserw all the pics below

What could explain what happened when the time was equal to 120 minutes

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

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