What measure describe a isosceles triangle

Which polynomial function has x intercepts -1, 0, and 2 and passes through the point (1, -6)

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

How can you construct perpendicular lines and prove theorems about perpendicular lines