You bike 3 miles in 15 minutes. at this rate, how long does it take you to bike 10 miles?

Me because some of question i don’t understand

In the diagram below, abc is congruent to dec what is the value of x

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte