10. A plane leaves Toronto for Montreal. The cities are 500 km apart. During the trip there is a tail wind and it takes 2 hours. The return trip against the same wind takes 2.5 hours. What is the average speed of the plane? What is the
average speed of the wind? [4]

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

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 coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle