How many lines does it take to form two half planes

What term makes it inconsistent y=2x - 4

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

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?