Help please? I honestly don't wanna fail Math. This will decrease my average by a landslide (if I fail)

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.

Determine which solution is correct for solving 5/7y=6 reciprocals.

Select the correct answer. given: ∆abc with prove: statement reason 1. given 2. ∠cab ≅ ∠edb ∠acb ≅ ∠deb if two parallel lines are cut by a transversal, the corresponding angles are congruent. 3. ∆abc ~ ∆dbe aa criterion for similarity 4. corresponding sides of similar triangles are proportional. 5. ab = ad + db cb = ce + eb segment addition 6. substitution property of equality 7. division 8. subtraction property of equality what is the missing statement in the proof? scroll down to see the entire proof.