Anna makes hand-painted plates. her overhead cost are $750 per week, and she pays an additional $10 per plate in material cost. if anna sells the plates for $25 each, how many plates does she have to sell each week before she can make a profit?

What is the length of bc ? enter your answer in the box. bc =

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem

The anwser cause i do not understand just plez